Can i use 5w30 instead of 15w40

First, it works surprisingly well with a broad selection of vehicles with different engine types. Some motorists desire a higher viscosity, and it may be easier to find a 5W-40 or 15W-40 diesel oil than gasoline oil Diesel oil typically contains more robust detergency additives than gasoline oils It is safe to use a diesel oil in your gasoline engine, provided the diesel oil meets the appropriate specifications and viscosity requirements of your engine. I've even used 20W50 to good advantage in an old Rover that was drinking the newer thin stuff (10W40); kept it going for a further five years use with no major problems. Some say 5W-20 is too thin to protect the engine, and that the manufacturers are recommending it because it improves gas mileage slightly. Normal recommendation for these engines is a 5W-30. Again the lower the number the thinner the oil is at high temperature. but he insist on 5w20. I have read other posts claiming certain dealers are putting either 5w30, 5w20, or even 10w30. AMSOIL 0W-30, 5W-30 and 10W-30 synthetic motor oils are ALL 30 weight oils. One time I was mixing a 50-50 combo of motor oil and bar lube to get rid of unused motor oil "properly". Synthetic oil is usually good for new cars since the seals and gaskets have not expanded yet from using a regular oil. The only down side would probably be the thickness in the winter time. I used 5w20 for the first 6000 miles and wasn't satisfied as my engine rattled at start. the mechanic he is using said 5w30 is okay. The fact is that a 5w30 motor oil is thicker in cold temperatures than in warm temperatures. Such as why some folks run 0w or 5w something in their vehicles in the winter. If it's not plugged in, a diesel engine isn't going to start at -20, regardless of the viscosity of the oil. Also keep in mind that both oils are specifically approved by GM for use in the high performance Corvette So use whatever oil you feel is appropriate. Normally I can get between 330 and 400 miles on a tank, once in a while slightly more than 400. Temperature range for 5w30 and 5w40; 5w30 is used in temperature ranges from -25°C to 25°C, while 5w40 from -25°C to 35°C. 10w30, however, has a smaller temperature window. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. The number after the W, in the above case '40'; gives a measure of the oil's viscosity at high temperature. This type of oil is generally used in hotter climates where the oil will thin out faster so it won't be a problem. . Motor Oil: 10W30 Vs. The 5w-30 is a little bit thinner and will flow better in cold weather. 21 Oct 2017 Q: I put 10w40oil in my engine instead of 5w30 and need to know if it will be okay My car has an automatic transmission. 3L instead of 15w40 and what this did as far as power and fuel economy. Question: Don't I have to use a 5w20 oil to maintain my factory warranty if my manual recommends a 5w20 oil? Answer: Absolutely not. Jan 12, 2007 · The 5W-30 gives improved performance in colder weather. This is an indication of better cold weather performance. The Royal purple 31130 engine will use the 10w30 with the 11744 series using the 5w30 oil. Thanks in advance. FWIW, there are numeorus online suppliers of VW approved 5W-40 oils such as ECS Tuning. Apr 13, 2011 · Interesting enough, they recommend anything from a 5w30 to a 15w40 (depending on the piece of equipment). They use 15W40 in all of their engines, both gas and desiel. I'm thinking of using 15W40 on my Dec 27, 2013 · A 40 viscosity Oil will be slightly thicker at running temperature, which is where the early VVTi engine has its weakness with burnt deposits on the piston rings. 5w30 and 5w40 motor oils have the number 5 which is then followed by W. 5w-30 would be just fine to use. Feb 26, 2015 · Viscosity Test Here is a little test I did comparing two diesel motor oils to see the flow of oil on a cold start in winter. If the oil is thinner, it has a lower viscosity. Jul 12, 2009 · When changing the oil in my fiancees car last time, I mistaken bought (then opened) 10w-40 instead of 5w-30 for her Saturn. 2 Nov 2010 Nine out of 10 heavy-duty long-haul trucks use 15W40 oil. With the small differences in kinematic viscosity you would be hard-pressed to detect these differences on initial engine start-up without specialized engine test equipment. I know that 15W40 is a heavier weight oil than 10W30. Both oils are available at Costco and the Delo is actually on sale :). Of course, now is the perfect time of year to winterize your car, so this could be a good move. This document is from 2011 (when 5w-30 was used in a lot of Subarus), which is two years prior to the introduction of the XV. 2 Jun 2018 When do you most definitely have a blown head gasket and you add the head The real problem with using 15w40 in place of 5w30 is the increase thickness of   To choose the right lubricant for your vehicles, use the viscosity grade(s) Would 5W-40 be less viscous compared to 15W-40 diesel engine oil for cold starts in the An engine oil's operating temperature does not change significantly even in  5W-30 engine oil is one of the most common viscosity grades and is available from Castrol in full synthetic and part synthetic options. Dasbear, the Syntec is a great oil. 10W40 for the winter (if you're living in S-Florida; If you're living in Alaska or other super cold areas, 10W30 might be better for you). Kostas says: Can I use the Mobil1 oil 0w20 SM instead? Thanks. Jan 23, 2013 · I used to use the dino 15w40 version but cold starts were a bugger and the noise, you could count how long it would take for the oil pressure gauge to move. So 5W-40 and 15W-40 both fall within the 40 range when hot, Jan 09, 2014 · Sound of start up using different oils in a Renault Clio 1. 5w30 is one of the two most commonly used types of motor oils for various reasons. Is it ok to use 5w20 oil instead of 5w30? - Just wondering. Jul 04, 2016 · The 0W40 is on the “approved” list of oils for these engines even though a 5W30 is specified in the manual. E. The 5W-20 recommendation has more to do with CAFE standards than anything else. g. The "w" means winter. The rationale the U. I just got my first oil change at a Ford dealer and when I got home, the invoice indicated they used 15W-40 regular oil. The oil viscosity's go by temperature. ​One of the advantages of using the 5w20 instead of the 5w30 oil is that the former provides better fuel efficiency. I am getting ready to do an oil change but was curious how my engine would be affected if I used 5w-30 instead of what the cap calls for (5w-20. it's all about balance. The New 5W-20 grade - Good or Bad for your engine. But for some reason went back to 10W30, then to 5W30. I own a brand new motorhome built on a 2018 Ford Transit 350 HD cutaway chassis. Oil generally is such of a non-issue now a days, it really does not matter for as long as it meets the API standard of the car's date. Castrol EDGE, an advanced full synthetic 5W-30 motor oil, is Castrol’s strongest oil and a great option for those who want the very best for their car. If you own a generator, then the best engine oil will depend on the generator type: for a Honda 08207, 10w30 engine oil will be ideal. Now certain brands of oil will have different thicknesses within a viscosity grade. No problems. 15W-40, - Roughly three times better at reducing engine wear Shell Rotella T is a line of heavy duty engine lubrication products produced by Royal Dutch Rotella oils like T3 15w-40 meets both the API CJ-4 and SM specifications, and may Both Rotella T 15W-40 conventional and, Rotella T6 5W-40 and 15w-40 Synthetic both list the JASO MA/MA 2 standard; this information can be  7 Aug 2015 Can I use Engine oil grade = 5w 30 PFE because is not a Yaris Hybrid? or Engine oil grade 0w Yes, you can use 5W-30, or 10W-30, 15W-40. For example I know Ford back-recommended 5W20 for engines that shipped with 5W30. Dec 19, 2018 · If you are going to use your generator in a very cold environment that allows only for very low starting temperatures, then the Synthetic 5W-30 may be a better option for you. Now, somebody has stated that the engine tolerances may have been designed around the thinner 20 weight oil. Reply. The 5w30 motor oil operates smoothly with any engine type regardless of the temperature and provides better protection and lubrication. The regular 5w30 is a heavier weight oil and will definitely cost u mileage. That is all that I use in my truck. May 01, 2018 · On the other hand, 5w30 is used in the temperature range from -25OC to 35OC. Moving to a 10W will reduce oil flow from cold, and can cause problems with the hydraulic lifters. Viscousity means the abilty to flow. using 5w30 full synthetic is 2nd best to using the VW spec oils. If you are not a hard speed driver you can comfortably use 5w30 in all weather for petrol cars. The diesel Rotella/Delvac/Delo oils are available in weights other than 15W40 (such as 10W30) but they can be hard to find as most of the class 8 diesels that the oil is specifically blended for are set up to use 15W40. The most common grade of automotive oil in use today is the 5W/30, which is a mineral oil refined with VI additives that leave it reading as an SAE 5W viscosity when cold, yet an SAE 30W when hot (210F). I don't see a full synthetic expanding any tolerances in the motor. In this case, 5w30 oil will provide better overall engine protection than 5w20. A lot of people just put a 5W40 in because of the shearing that most 5W30's undergo. In fact, many say that using 5w20 instead of 5w30 can cause damage to your engine, resulting in a reduced engine lifespan. There may be other factors involved, but I doubt it. Sep 26, 2007 · I have an acura with 226k miles. I was in Walmart just the other day and they had 1 Liter jugs of Mobil 1 0w40 VW spec oil for under $23, not sure if this is national or not but a great deal if you can get it at your local Walmart. 5W-20 grade oil, and Mobil 1 has a synthetic 0W-20 on the way in March 2003. Does nothing for power and haven't notice any milage improvement. Your MPG's may drop slightly but not much I am sure. I suggest full synthetic if you do. Expy now has nearly 188,000 miles on it. 1L for every 3,000 KM). Oil flow; 5w40 provides higher pressure but less flow. its done about 46k miles and is about 12years old. The service person said that they would have to use individual quart bottles of the 20 wt and didn't have any so I let them go ahead and put the 5w-30 in and can tell you that there is a big trade off in mpg and performance by going with the 5W-30. 5L and use 0W-40 Castrol European blend. I have a '92 FJ80 with a 3FE engine with 135k. 5W40 Synthetic VS regular 15W40. I agree with Jason that when you have high miles on your car 10w-30 is better even 10w-40. 6 engine. You can notice, when the engine vibrates more, you'll have to get thicker oil. COnsidering 15W40 is a mercedes canadian spec, it amazes me that other places in canada that are much colder must be using the same oil and surprised they havn't switched to the softer 10W40. Around here, the 0W-40, 0W-20, 0W-30, 5W-30 of Mobil 1 are the same exact price. 001-. The use of such oil will decrease engine resistance and improve your gas mileage during short trips in which the oil doesn't have a chance to warm up. A: Yes, many of our customers use 15W40 engine oil in their Kubota diesels. One of my cars uses 6 quarts of 5w20 and the other uses 4 quarts of 5w30. 15w-40 and 15w-50 have the same viscousity (15w) but the 50 can withstand a higher temp. As you can see they only have 5w30 and 5w40 motor oils. My Mazda Miata manual tells me to use 5w20, unless I happen to be in Mexico, where they say 5w30 is just fine. 15W40 oil is a very poor oil to use in any current model of gasoline engine, since it gives very poor lubrication at start up, and is too thick to properly lubricate most modern day gasoline engines. it was 20w40 or 20w50 User #327924 7548 posts The Pennzoil car engine can use both the 5w30 and 10w30 without a blink. The WRX seems to work well with the 5w30. People say some oil is better than other kinds ,Im sure thats prob true, so use what your comfortable with. 002-0. The answer is that ANY one can be used regardless of the vehicle owners manual recommendation. Personally, I apply engine oil applications as follows: IH built diesel engines use straight 30w engine oil. Your vehicle does not  9 Oct 2017 2004 - 2008 F150 - should i keep using 15w40 in my 5. The lower weight is only necessary for cold startup and since your engine block should be about 80+F then the 15W is all you need. In other words, a 5w30 flows better in cold weather than a 10w30 motor oil will. How ever, in 2 stroke Detroits, such as at the 8v71(aka 318 Detroit) and 6V92T they specify SAE 40. 10w40 motor oil is synthetic motor oil that has a viscosity of 10 in low temperatures and viscosity of 40 at higher temperatures, usually 100 degree Celsius. I think mercedes is using the 15W40 oil just for longer intervals. The reason why older cars need thicker oil is due to wear at the piston rings which causes blow-by. ca: "If you mix viscosity grades such as a 5W30 low-viscosity oil and a 10W40 higher-viscosity oil, it is reasonable to expect that the resulting product will have viscosity characteristics which are thicker than the 5W30, but thinner than the 10W40. My 2011 Camry requires the use of 0w-20 oil and although I live in Wisconsin, we had 2 weeks straight of humid 95+ degree weather. oil, and their mistaken belief that more zinc and a higher viscosity can provide better wear protection, as well as their mistaken belief that 5W30 Mobil 1 is not very good. 5w40 for diesel cars as it runs on higher compression and secondly if your petrol car has crossed 50000km you can opt 5w40 all season. The HD trucks spec out 5w30 or 0w40 so no reason the 1500s cant run the same. Dec 27, 2009 · It also seals the piston rings, cools the engine and lubricates the moving parts. To get perfect lubrication to those bearings demands a skinny oil like 5W-30. i put in 15w 40 this morning and now wondering will this damage my car in any way? Re: Run 15W-40 or 10W-30. I have read that the newer automotive oils have been reformulated for the newer cars with roller camsthey supposedly do not protect flat tappets as well as the previous formulations. Not sure how big of a deal this is, especially since it's getting colder, so I haven't Re: Can i run 5W 30 Oil? the owner's manual is what you should go by if it's a new truck however alot of professional machine shops says otherwise. S. Re: Run 15W-40 or 10W-30 Since I started using Shell Rotella 15W40 in my diesel engines I haven't bothered to switch in winter, even though it gets down to -40 here. The two were outside overnight at -25C Definitions. 5w30 is also one of the most widely used types of motor oils for two main reasons, namely because it works great with a diverse selection of vehicles with different engine types, and the oil also covers a broad range of possible temperatures, but, as explained above, is ideal for warmer temperatures. 5W-30 fully synthetic engine oil exists in a Vauxhall Insignia engine but it needs topping up and I believe it should have oil in 5W-40 viscometrics. So that is what I'm going to do. Who is right? In the unfortunate event that he is, and the 15w40 is extreme, would 10w30 be an ok option? Aug 25, 2011 · its done about 46k miles and is about 12years old. So the dealership gave me 5w20 instead of 5w30 even though they said they didn't and the lab test will prove it and they filled it up to normal focus levels even though I specifically informed the guy it was the ST which took 5w30 and more oil. Now you wont need to change it for summer weather either. Jan 22, 2009 · I bought the wrong oil (5W-30 instead of 5W-20) and - Answered by a verified Ford Mechanic We use cookies to give you the best possible experience on our website. Probably better since it's been 100+ degrees for the last month. In my Subaru manual it says to use 5W30 at normal temps but also says you can use a 5W40 at higher temps. 5W30. Jan 23, 2008 · My Dad always used 15w40 in everything from tractors to cars we never had probs with it . What is the difference in the two oils and can you just use 5W-30 in small engines. The second number is flow rate at operating temp of the engine. ) I have a 2004 LX Sedan i4 AT, 100K miles and just started using synthetic oil. Nov 11, 2003 · This shop I went to put in 10w30 on my 2003 Zetec (ZX3). So go for it. GTX Diesel is a 15W-40 diesel engine oil formulated to help extend engine life. The efficiency, though significant, will not lead to an extremely noticeable jump on your MPG. A lot of guys, as their engines get older, go and switch to 10-30w anyways, when they get older and start using a little bit of oil. Which 30 Weight Oil Do I Use, 0W-30, 5W-30 or 10W-30? We get asked this question so often that we have included this special page dedicated exclusively to answering the question. Usually the manufacturer recommends different oils in a temperature range though. 15W-40 is a very common viscosity grade for diesel engine oil. Yes, a lower viscosity oil like 5w20 will provide less protection than 5w30 in normal operating conditions. In the winter cold, the oil acted more like a 10 weight oil, and as it heated up, acted more like a 30 weight oil. Aug 19, 2018 · Switched mine to 5w30 at 6,000 miles, would have done it sooner but thought I would use the free oil change I had. These are (unless you own an LFA, in which case good for you) 5w30, 5w20 and synthetic 0w20 weight oils. It has the same flow rate as SAE30 at normal operating temps. If you live in a hot climate the 10w-40 might even be better. This is how I learned it but the bottom line is use the oil the manufacturer recommends and ONLY that oil, if you must use something else use oil with a lower number rating. However, if you think you're harming your car by running 5w-20 in hot weather, think again. A newer car with one of these engines could handle 5W30 no problem. However Chevy has it in my manual and on the oil filler cap in the engine compoartment - 5w30 oil only. 89 people The only thing I've noticed that helps is mixing a qt of 15w-40 diesel oil with the 5w- 30. Unless it is very cold and you are not going to be using your car for sustained trips the 5W-20W may be too thin for your engine. Use what the manufacturer recommends. The 5W and 10W defines how the oil will flow at 0 degrees. Jun 15, 2019 · Another point is the 6. The Pennzoil car engine can use both the 5w30 and 10w30 without a blink. conditions - because the "W" number is lower. However, you need to keep in mind that this oil comes with an increased oil consumption by the engine at higher operating temperatures so check its level before each use. So the lower the first number the easier it flows in cold temps. But the manual indicates to only use synthetic and the filler cap indicates to use a weight of 5W-30/40. Oil viscosity is set via bearing clearance and cutting-area autos use . Since you say you use a block heater all the time, I don't think you need to remove the 15W-40. Toyota originally recommended 10w30 for these cars, but you may want to use a thicker or thinner oil based on mileage and weather. It's 5W-40 to 20W-50 according to my Haynes manual. The thinner oil IS recommended for that engine in that truck and will be an appropriate oil, and will get better mpg than the 40 weight. It's the additives that wear out over time, and the contaminants that build up in it, that are the reason for the recommended intervals. Since they put the 10w30, I don't think I've managed any more than 350, and it's usually much closer to 300. Suitable for use in petrol and diesel engines, Castrol’s Intelligent Molecules cling to your engine, protecting your SUV from the moment you turn the key. i read in the manufacturers guide that you must use 5w 30 oil or 10w 40. noticed that with the 5w-20 I seem to be burning a bit and was thinking of going to a little thicker oil. I want to know what problems 5W-30 may cause if I use it instead of 5W-20. However, some variable valve timing engines are a lot more picky about the oil type, From Shell. Again check your owners manual, if 20W oil can be run up to 30 degrees and its 35 or 40 I wouldnt worry too much about it. I use this oil in the Metro and was thinking about just using it in everything so I only have to buy one kind of oil. I read an interesting post regarding the use of straight SAE 40 vs 15W40 in 4 stroke engines. Dec 16, 2010 · As long as the oil you use is VW 502 certified, a 5W-30, 0W-30, 5W-40 or 0W-40 will work just fine. Is there any downside to 15w-40 in the IDI and 5w-40 synthetic in the PSD. Sep 14, 2013 · I personally use Shell Rotella 5w40 full synthetic with JASO MA approval which is much cheaper than the official Honda dino oils from the dealership. i put in 15w 40 this morning and now wondering will this damage my car in any way? Update: the oil level was just above min and i put in about a litre and a half on the 15w 40. However, if you're using it in a colder climate I'd stay away from it. it normally takes By saying I should run 5W30, I'm assuming that the 15W will have hurt my  Results 1 - 24 of 166 HP Lubricants Milcy Turbo 15W-40 API CF4 Engine Oil for Cars (1 L) Gulfstar 15W-40 API CI4 Hybrid Diesel and Petrol Engine Oil for  What oil can I use for my Toyota Camry 98 it has 355 k. For this reason, it's recommended to use it instead of 10w30 for vehicles never gets near freezing, an even higher starting viscosity oil like 15w40 can be used. I read somewhere that it makes a difference only if you are driving at high speeds (> 130mph) for a sustained amount of time. The engines were developed 30 years ago and oils have advanced a long way since then. Modular engines can use 5W-30 without ill effect. oil, and their mistaken belief that more zinc and a higher viscosity can provide better wear protection, as well as their mistaken belief that 5W30 Apr 27, 2009 · 5w-30 is fine to use. what are the implications of 5w30 or 5w40 instead of 5w20 engine oil. Now, 5w-40 oil seems to be uncommon in the US, so can I use 5w-30 instead, and how much is the difference between 5w-40 and 5w-40 oil. The way oil works is, the first number is flow rate at ambient temp. It's not a drastic step from say 5w-20 to 10W-60. The bigger issue is not only the viscosity it is the rest of the oils spec codes. You do not have to switch unless you are having excessive oil consumption (eg. The 'hot' 40 spec won't be so much of an issue. Sep 26, 2007 · Use 5W-30. The one I use to go used Rotella 15W40 diesel oil to break an engine in after a rebuild and so does the current shop I use. 5W-40 is thinner when cold than 10W-40, but 5W-30 and 5W-40 are both within the 5W range when cold. Modern 15W40 oils do not have the poor viscosity improvers of past generation oils so they are fine to use. If you are in a mild climate (temps above 40F), the Chevron Delo 400 15w-40 appears unbeatable, and many times turns in numbers close to the synthetics. When it comes to engine oils, you have a variety from which to choose. Second, the oil also covers a diverse range of possible temperatures, but is ideal for warmer temperatures. Notice that MT Gear oil is 75w80 instead of 75w90, probably because of low temperatures in the north. 002 inch clearance. Apparently, the use of straight 40 provides better lubrication and wear protection. The 302 uses 5W30. You can use 5w-30 if you really want. These days is sees very little use, maybe 2,000 miles a year if that. I normally would not put 5 in a car unless in a cold climate. But I see no harm in using this. Mobil 1 0W-40 is a Euro formula and excellent VW approved oil that is available at numerous retailers. Apr 27, 2009 · Changing oil in the lawnmowers and snow blower. If you are not having this issue, then there isn't a need to switch to thicker oil. Some of the more popular multiple-viscosity oils are 5W-30, 10W-30, 10W-40, 15W-40, 20W-40, 20W-50, and 5W-50. The Ford manual doesn't state that you can ONLY use a 15w40, instead it has a little chart of viscosity's and the temps where you use them. I've yet to see anything for the FB20 engine stating that 5w-30 is preferred oil, regardless of country. That seems like a drastic change and way too think to me. My 1996 Pontiac Grand Am is only recommended to use 10W30 above 30 degrees F, but 5W30 is an all-temperature recommendation. I regularly use 15W40 oil where the car engine gets older and starts burning oil as it cuts down oil consumption. Fuel economy; 5w40 has poorer fuel economy. Which one of these varieties you choose to use is dependent on several factors such as driving conditions, external environment, the total number of miles on the engine and the recommendation of the manufacturer. Oct 22, 2015 · Regardless, it is still just a video and I would not recommend deviating from anything that is not called out in the owners manual while in warranty. If they're both free and you're outside of warranty, I'd run the 5w-30 in the summer, and the 5w-20 in the winter. For those in colder climates, in the winter, run a 5w-30 if you use mineral and pick your choices from Chevron, Havoline, Pennzoil, or Mobil. I always use 5w20 myself. Conclusion: So, when it comes to picking the right motor oil 5w30 vs 5w40, the former is clearly the winner. The problem is oil is oil, and will always be oil. Since switching, starts easier, instant oil pressure, I feel safe beating the crap out of th engine daily driving and towing and I go 7500 km's with a decent oil filter. Mobil 1 oils are designed not to shear at all, providing better engine protection. because of the fact of this 20W-50 is for older autos; . I'd like to just buy two 5 I regularly use 15W40 oil where the car engine gets older and starts burning oil as it cuts down oil consumption. 5 inch clearance grow to be common earlier the Eighties. Part Number: Valvoline Super Diesel Engine Oil -15W-40 5 Litre. Therefore, whether you use the 0W-30, 5W-30 or the 10W-30 is strictly a matter of choice. The engine quietens down sooner but oil usage increased by 50%. The real problem with using 15w40 in place of 5w30 is the increase thickness of 15w40. Now I'm at 10000 miles using Castrol Titanium 5w30. Hello members, I'm currently running Chevron Supreme 5w-30 and thinking about switching to Chevron Delo 15w-40. Dec 02, 2014 · I have a new 2014 grand caravan with the 3. Jan 30, 2020 · 5W30 Motor Oil. In general, viscosity refers to the ease of liquid flow. In other words 5W30 has been a base oil standard in the industry for at least 10 years. Most additives, including seal conditioners, anti-foaming agents, dispersants, and detergents, wear out in about 3,000 miles. As the oil passages wore down with age, switching to a thicker oil would increase the oil pressure, which would hopefully be enough to push it through every space in the block and heads to keep them lubricated. 8. Thickness of 5w30 and 5w40; 5W30 is lighter, so it got better fuel consumption. Seems FCA looks for anything to deny a warranty and pulling out receipts for 5W-30 oil changes instead of the correct MS-12633 spec'd 0W-40 can cause complications. Just went in at 1,250 miles to get the oil changed and get my tail light checked due to being really tight on the frame and instead of putting in Synthetic 5w-30 like the manual states they put in 5w-20. that being said, if you put in 10w40just drain it out and refill with 5w30 but if you put 5w30 in it Jul 12, 2009 · When changing the oil in my fiancees car last time, I mistaken bought (then opened) 10w-40 instead of 5w-30 for her Saturn. There has been many threads debating this topic to death. 5W-30 motor oil is one of the most common viscosity grades and is available from Castrol in advanced full synthetic, premium full synthetic and synthetic blend options. W represents winter and not weight. I'd be most concerned about the Fabia needing a certain spec. Jun 15, 2019 · Last oil change I used 5W-30 (Mobile1 FS) instead of the 5W-20 in my 2007 expy that I have used since day one per Ford's spec. 4 - I'm buying a chain / phaser job he says " I do the customer a favor, I put in 5w30" Results 1 - 60 of 416 Valvoline Synpower DX-1 Engine Oil - 5W-30 5 Litre. Dec 23, 2004 · Greetings Silveradoman, Personally - I have always used good quality 10W40 or 15W40 or 20W50 in the summer in my engines in Wisconsin and 5w30 or 10w30 in the winter. No rattles, engine is more quiet and the mpg remained the same as with w20. If the oil meets or exceeds the specs the cars need, then yes you can use them. My friend tells me that I should change from the 5w30 to 15w40 because of the high miles and the slop that the engine must have. In my own semi truck, it gets a 10w30 syn blend in winter and a 15w40 syn blend in summer. Jan 15, 2012 · Even my 1996 Ranger (a relatively crude truck engine) is recommended to use only 5W30. Corvette owners typically use for choosing this 0W40 Euro blend Mobil 1 instead of following GM’s recommendation, is the thinking that this oil may have more zinc than U. The -20 will help the oil hit operating viscosity faster in the cold weather, and the -30 is going to have a marginal impact on fuel economy but should provide a slightly better oil film for wear characteristics. Simplest I can explain it is that Multi weight oils provide the cold flow characteristics and ease of starting of a lighter weight oil with the protection of a higher weight oil at high temperatures. A Full Synthetic engine oil, Castrol MAGNATEC SUV 5W-30 C3 is formulated to provide continuous protection for SUVs across all terrains and driving conditions. May 18, 2011 · You can continue to use 5w30 oil. May 18, 2016 · Hello. When the oil flows faster, the engine also ignites faster and therefore fuel is conserved. If the weather is going to get really cold you might consider draining the oil and putting in the 5w-30, but other than that, they will both protect your engine. Despite We do have some customers who buy our 5W-30 because of the cold start  31 Jul 2017 Multigrade oils such as SAE 5W-30 and 10W-40 are widely used living in Finland (0W/ 5W-30) or Nigeria (5W/10W/15W40 or even 20W50). You’ll get slightly lower gas mileage, but that’s the only thing. If you would like to have an oil change done on your car while at your home or office, 10W-40 Oil instead of 5W-40 - John S : Yoby Not ideal. Synthetic oil tends to shrink the seals and gaskets, so if you use a synthetic oil after the gaskets have already been expanded for a better fit between two metals, synthetic oil will shrink them back and leak might develop. I would use 5w30 (or 10w30 if you insist) and not worry about it. Part Number: . May 18, 2011 · Mugen85 bro is right. Save it for your lawn mower. Answer: 5w20 oil has less film and shear strength than a 5w30, 10w30 or a 0w30 motor oil. Jul 14, 2011 · Hi, reading through posts and notice that there are discussions about 5w20 and 5w30, there was a TSB in 2006 to switch to 5w20 for some cars, but then the 2009 were produced later and the manual still saids to use 5w30. I was just wondering if anyone had put diesel 5w30 in their 7. So SAE30 does not change in thickness no matter the temp. Many individuals on mazdaspeed use on their boosted 2. Introduced in 2006 in the 2006 Rav4 4-cylinder (2AZ-FE) engine, 0w20 is used in almost all new Toyota and Lexus products (save the LFA, which takes 34-38 quarts of 15w-50 Mobil 1 per oil change). May 13, 2013 · The difference between multi-grade and straight-weight oil is simply the addition of a viscosity improving (VI) additive. However, I’m sure that the worst used motor oil is probably more suitable for immediate use than the best sweet crude. At operating temperature, there will be a completely insignificant difference between the two. I recently put in a quart of Shell Rotella 15W40 diesel oil & noticed it burns less over 500 miles use. Therefore an SAE 5W oil is a lower viscosity oil than an SAE 10W oil. Assuming you went to Supercheap (where the Valvoline 15W-40 Super Diesel was $20, they also had Gulf Western 10W-40 5L for $15 (55% off). I don't like straight weight oils and don't beleive in changing weight from summer to winter. I have also been told that using 10W30 vs. Stack Exchange Network Stack Exchange network consists of 175 Q&A communities including Stack Overflow , the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. Thicker oil (like 15W40) will make your engine run smoother, and will make the engine last longer. The Delo is only available in 15w-40. Apr 03, 2012 · The problem with a 5w40 on a decade old engine is that the fine tolerances you are talking about are now all a lot less fine than they used to be, so as a result an oil with a slightly thicker cold grade will allow you to generate pressure in fewer turns of the crank when cold starting. 29 Jan 2018 For example, engine oil can put acids and silicon oxide into a thick suspension so that these will For instance, you will see SAE 30 instead of a SAE 5W-30. Nov 23, 2006 · Nothing really. I read through the thread on oil and many suggested 5W-30 has advantages and 5W-20 may cause engine wear. It would make more sence to me just to buy one weight of oil. For diesel 5w50 Mobil 1 ,can be used in hot summer. If the synthetic oil meets those standards, it can be used in Kubota engines. This formulation has a downside in that the Cat converter will fail earlier however I've not had an issue with my emissions inspections. Aug 15, 2012 · 5W30 and 10W30 in a same brand will have the same viscosity at operating temperatures, but the 5W30 will have less resistance to flow when cold as opposed to 10W30. the first number is more based on operating temps when you look into it. It does burn oil but not too bad. Replied by JBamin on topic Can I use 5W30 in place of 10w30 motor oil? yes it is ok, the 30 is what matters the most. NA car with high mileage, it is recommended to go for 5W40. So the oil is thinner when it is still cold providing protection whle the oil is cold but allows it to be thin unlike heavier oils that will not thin out till they warm up. Automobile manufacturers may recommend thinner motor oil for this reason, although the increased fuel economy comes at the cost of increased engine wear. I wonder if someone on here could help me. 2L V8 engine, when it was used in the half tons recommended oil was 5W-20, as soon as it was Super Duty only ford switched the recommendation and superseded it to 5W-30 instead for “increased wear protection”. The ratings are more like rankings, with 0w20 being at the top and also exceeding the rating of other "lower" oils such as 5w20, 5w30, 10w30, etc. If motor oil is thick, then it is more viscous. [/ QUOTE ] I've used Rotella 0W30 for the last couple winters. 10w40 oils typically don't have friction modifiers that will harm a wet clutch, but always keep an eye out for the "energy conserving" label. The number after the - specifies that the oil's viscosity when hot falls into a specific range. First manufacturers recommended the 10W30, and later the 10W40. Since it is an old model engine , i want to replace it with Shell Rotella 15w-40 diesel engine oil. The oils therefore have the same viscosity in winter, Dec 16, 2010 · As long as the oil you use is VW 502 certified, a 5W-30, 0W-30, 5W-40 or 0W-40 will work just fine. I myself use 15w40 in my 81 pick up,semi and in my 03 saturn use 5w30 cause thats what book says, have not had prob with any. You can use 5w30 but if your vehicle is still under warranty, then you might risk them denying a claim down the road. 5w20 provides protection with better gas mileage, 5w30 provides better protection at the expense of gas mileage. This was for fuel economy reasons (some question effect on engine life). 3L engine for Gen 1 or Gen 2 --5W-40 Rotella by Shell. I want to use 5w30 can I do that and still maintain my warranty since it states in the book that 5w30 is OK? My Dodge Ram 1500 has 215,000 miles on the engine. Aug 25, 2011 · Wrong oil in car. That could be true. I live in really hot climate so 10w-40 is not bad on the engine. I changed after researching the issue & figured with the higher mileage it wouldn't hurt & may offer slightly better film protection. 6 Petrol (K4M Engine) The 5W-30 oil is Valvoline Synpower and the 15W-40 is Castrol GTX More info at: Jan 30, 2020 · 5W30 Motor Oil. I have some extra at home and want to make sure I am not going to damage anything if I use it. my boss own a ford explorer 2014, the manual states that only 5w20 should be used for servicing. My warranty book states that 5w30 oil is OK if 5w20 is not available. This is the way i was explained 5W30, 10W30 ect means. In general, 5w30 is a great multigrade oil designed to meet the demands of almost any temperature in both warm and cold climates. Using 5W30 oil for your vehicle will not blow out the engine. In the end it's your choice. I used to work for a county highway dept. In newer, low mileage engines it is too thick to properly lubricate tight clearances in areas such as VVT (variable valve timing) components. Thinner motor oil, such as 5w-30, provides less friction in the engine, resulting in increased fuel economy. 5W30 would be better for wear protection. Dec 23, 2004 · The 5W30 oils are better for colder climates because they act as a 5 weight oil when cold and as a 30 weight once warm. From Shell. If I recall, 5w-30 is what the specs call for. To explore more about the temperature range of these motor oils, you can refer to maintenance tips by car experts. If there's no loss of engine oil, you can continue go with 5W30. 5w30 is also a great choice if you live in warm climates that reach up to 35 degrees Celsius or 95 degrees Fahrenheit. Sep 12, 2015 · This is what the engine mfgs need to use to meet the ever strict emissions rules. In years past, owners of high mileage vehicles would use a higher viscosity oil than what was recommended by the manufacturer, say 15w40 instead of 5w30. Click to expand I been using Mobil 1 5W30 for a while now and is what most owners use on svtperformance but the Amsoil is a very good oil but It cost lots more $$$ the Mobil one. My question is can I use 10W30? Every other engine at my house uses 10W30. I have heard of people using automatic transmission fluid in saws in the winter insted of winter grade lube, but I'm cheap so I got some of that Wally-Mart "Super Tech" 5w-30 cooking oil during our last cold snap. ANY one of these can be used regardless if your vehicle owners manual says to use, for example, a 5W-30. A 5W40 will be thin enough in Winter not to be too slow to circulate and protect. Same brand, same add pack. no way should that car use 10w40. Jul 06, 2008 · Then came multigrade oils, 10W30 then 10W40, 15W50, 20W50, etc. I've noticed that the mileage does seem worse in the past 2 days. 15W40 is the best for summer. you're simply widening the "protection window" from 5W30. 10w30 can be very hard to find with JASO MA approval for wet clutch use. However, your vehicle will not run as efficiently as it should and you may experience a loss of fuel economy. Your vehicle runs best at 5W20 and this is the type of oil that is recommended by the manufacturer; Nov 23, 2006 · Nothing really. Oil for gas engines should never go in a diesel engine and vice versa. This can lead to increased engine wear under today's demanding heat and high-stress engine performance conditions. I'm driving a 2011 3S 2. Jan 19, 2016 · They don't use oil recommendations in the manual like commercial heavy trucks do where it is assumed that end users will select oil grades based on several different factors. CDC built diesel engines use 15W40 engine oil and the newest Tier4B, FPT built engines use 10W40 engine oil. Can I mix 5w30 and 5w40 engine oil. Application Use what the manufacturer recommends. If used motor oil is put thru a proper refining process, it has the potential to be as good as, if not better than new. 15w40 instead of 10w30? so i was wondering if theres anything wrong with using that instead? will there be any repercussions? 5W-30 Synthetic that meets MB Sep 28, 2010 · So I put 10W 40 into my engine instead of 5W 30 My mobile was dead so I could not verify with friends or the internet, the petrol station advised me 10W40 so that is what I used BUT only half a litre as I just wanted to get the light off and double check the oil once I got home. 5w30 motor oil is synthetic motor oil that has a viscosity of 5 in low temperatures and viscosity of 30 at higher temperatures, usually 100 degree Celsius. If it is out of warranty, feel free to use 15w40 diesel if you want. Aug 25, 2011 · its done about 46k miles and is about 12years old. In winter weather: the 0w will flow like a 0w, the 5W will flow like a 5w, and a 10w will flow like a 10W - only until the engine warms up (choose what's best for you depending upon your winter climate). should be 5w 30 i put in 15w 40? i have a ford focus 1. he is a very sensitive man when it comes to car maintenance and other related car issue. Jul 04, 2016 · You can use 5w30 synthetic, but 15w40 is a diesel oil that has additives that can hurt your catalytic converter. thicker oil can reduce that. Jan 28, 2005 · BTW, I have used 5W30 Mobile 1 sucessfully in the past, but on this car I'm using 0W30 Amsoil series 2000 because I am convinced that it is a better oil. The lower the 'W' number the lower the viscosity of the oil. can i use 5w30 instead of 15w40