Fuel Efficiency: Lower viscosity oils generally offer better fuel efficiency. #4. Today, I personally don't see the point in a passenger car. This can be beneficial in higher heat conditions or for engines that operate at higher temperatures. You'll definitely want to change that out before it gets cold. 0W30 has a lower viscosity than other types and will flow more freely in extremely cold weather -22℉ (-30℃) or lower. 88 posts · Joined 2008. Actually, a stack of 10w30 oils including a 5w30 HDEO on the approved CES 20086 list. And from all the research I've done, it appears that from a mechanical engineering standpoint, motor oil viscosity of about 10 or 11 cSt is ideal for the vast majority of automotive engines. 7L Hemi. ”. So, in a nutshell, you can use 10W-30 instead of 5W-30 oil, but it’s not without its caveats. 5W-30. NJ. When to Use 10w30 vs 5w30. Since both oils have the same operating temperature viscosity (30) and additives, they will perform exactly the same. After it is out of warranty it's your call. However, if you are in a year. While 10W-30 offers better high-temperature protection and. I run 5W/30 in a Jeep and a RAM that call for 5W/20 but both motors were originally (in years past) spec'd 5w/30 so it is a safe choice for HEMI and Pentastar motors. You should be fine to use 40 instead of 30 but if you can get 30 I would get some. And considering that studies show that. kwg2005; Jun 24, 2023; Passenger Car Motor Oil (PCMO) - Gasoline Vehicles; 2 3 4. Below 40°F and down to -10°F, use 10W-30. If you live in a region that experiences temperatures below -20 degrees Fahrenheit, however, you should use 5W30 engine oil. But the Long Life approval may not be as critical as the High Temperature/High Shear (HT/HS) viscosity - at least for those changing their oil before BMW says so. What I didn't know, is that there is a "cam phaser" in the 5. Mobil 1 10w30 is much too thin. Here is a summary of their key differences: Viscosity. The "30" in "5w30" is the hot viscosity. 7. The engine oil will flow slower than 5w30 during the cold season. #9. 37,585. This means it will have a free flow at a lower temperature compared to 10W30. My car is Suzuki alto japan 2017. Roller cams like the lighter weight oils, but with age, it doesn't hurt to step up to 5W30, particularly in the hotter regions in the country. What’s better 5W-30 or 5w40? In practice, this means that each oil is just as viscous at lower temperatures and will remain viscous at -30°C, however 5w40 oil outperforms 5w30 oils at higher temperatures, being effective up to ambient temperatures of 50°C, as opposed to 30°C. Now let’s break it down in order. When motor oils mix inside the car, the engine would still run properly, but not as efficiently as it used to. There is no major issue should you use 10w30 instead of 5w30. For sub-zero temperatures, SAE 5W-20 is the company’s recommended oil. Besides synthetic SAE 5W-30, you can also opt for conventional SAE 5W-30. Yes, you can use 10W30 in your lawn mower instead of SAE 30. The 5w40 motor oil indicates the weight and the viscosity of the engine. The 10w30 will be thicker during cold starts than 5w30, but once the engine warms up, their viscosities are similar. Castrol, Valvoline, Pennzoil "conventionals" are all labeled "synthetic blend" in 5w-20 and 5w-30. 5W-40 won't hurt, and if you really want to try it, go ahead. Here, the higher the number, the thicker the oil is. 6. Sep 23, 2015. Ford found that 5W-30 started pumping at the valve train in 30 seconds, while 10W-30 took 2 minutes. When the engine cannot handle. You might think this would mean that 5W-30 would flow out of your engine faster than 10W-30 when cold, which could be bad if you’re trying to start your car in sub-20-degree weather. The first number, 5, represents the oil’s thickness or viscosity in low temperatures. However, 5w30 is better than 10w30 because it has a higher viscosity, which means that it is thicker and more viscous. Engines on most outdoor power equipment operate well with 5W30 Synthetic oil. What happens if I use 10w 30 instead of 5W-30? Most oils will mix perfectly, provided they have a similar synthetic. Same as the case with the 10w30, 5w30 also meets all the standards set by the American Petroleum Institute and the European Automobile Manufacturers Association, like API SN and ACEA. (you must follow the manufacturer's recommendations). It is advised that 5w20, 5w30, or even 10w30 motor oil be. On the other hand, 5w-30 oil has a thinner viscosity rating when the engine is cold at 5w, making it easier to flow through the engine. At times, mechanics suggest you to use a thicker engine. But for the guide, you can use 5w40 motor oil in starting your engine in low temperatures. But in short, the SAE 10W30 has a relative viscosity that thins when the oil is heated instead of thickening. DO NOT use automatic transmission fluid (ATF) - that fluid is NOT compatible with the oil that's in there now, and it may even wreck your seals. The 15w40 motor oil is a motor oil that has a high performance. On the other hand, the second portion of the grade number describes the thickness of the oil. The “10W” indicates the oil’s flowability at low temperatures, while the “30” represents its viscosity at high temperatures. I haven't had any early morning tapping since switching to penzoil platinum or even the Mobil1. 7L HEMI. However, the thin consistency of this low-viscosity SAE5 weight oil, will not cling to the chain as well in the summer months. 10w30 is not a "thicker" oil per se. In some rare cases, 10w-30 may cause engine overheating in extremely cold temps. 20W50 is a thicker oil and will help protect your engine from wear and tear. When motor oils mix inside the car, the engine would still run properly, but not as efficiently as it used to. If you still got 5W30 inside the engine when you mistakenly refilled 5w20, the two oils – 5w20 and 5w30 – would mix together. For the 5w20 motor oil, the twenty indicates that the motor oil has a low viscosity and is also thinner in high temperatures. 4L Theta GDi type, Hyundai wants your car to have either 5w-30 or 5w-20 (or even 10w-30 if your car NEVER gets below freezing) that meets or exceeds ILSAC-GF4. 0L engine, I'd be running Mobil 1 0W-40 / Rotella T6 5W-40 synthetic or for conventional / synthetic blends, MaxLife 10W-40, PYB 10W-40 or HM version, or Mobil 5000 10W-40 +/- HM. So, we can see, 10W40 is thicker than 5W30. #1. Run 93 octane. L. Another way of looking at multi-vis oils is to think of a 20W-50 as a 20 weight oil that will not thin more than a 50 weight would when hot. So, the main point is this; you can use 5w30 instead of 5w20 for your Jeep and not notice any significant change in how your engine works. Can I use 10W-30 instead of 5W-30? The only reason to choose 10W-30 is the price. Protects for up to 10,000 miles or 1 year, whichever comes first. The only difference between the two oils is the low temperature point, with the 5W30 oil functioning slightly better than the 10W30 oil. SAE 5w-30 Synthetic Oil: Synthetic mower oil good for warm and cold weather use. #2. It is possible to use 10w30 instead of 5w30, but it’s best to follow the manufacturer’s recommendations. (drained 5w20 will be used at a later date in the Mazda) My reason for doing this is 1. This is because 10w40 is slightly thicker when hot, and also rated for. Here, the higher the number, the thicker the oil is. Always refer to the vehicle’s owner’s manual to ensure you’re using the recommended oil grade. THE 10W30 OIL & ITS BENEFITS. The 5w30 oil is lighter and best suited for use in winter or areas where frigid weather is constant. It is not recommended to use SAE 10W-30 instead of 5W-30. 5w30 Vs 10w30 Differences in Engine Oil Viscosity. 200k, its fine to go a little thicker, can help extend the engine life. 0w30 vs 10w30 Chevrolet. the original 3. When the temperature rises to 40° F or higher (or 5° C or higher), use SAE 30. But can I use 5w30 instead of 10w30?For the best protection of your engine during the summer months, it is advisable to use a slightly thicker grade of oil such as 10W30 instead of 5W30. It is advised that 5w20, 5w30, or even 10w30 motor oil be used in some Chevrolet engines in summer. 0W will flow faster and better in a much colder climate because it is thinner. 5W 30 is a synthetic motor oil that is designed for use in high-performance engines. Hey all, I've been using 5w-30 in the 3. But, 10w30 is not ideal for the snowblower engine. But, again, not all vehicles of one brand recommend only one motor oil. As far as thicker oil, first try a High-Mileage oil before you do to a diesel 5W-40 - try Valvoline Maxlife 10W-30 and see if it helps. I was running 5w-30 for the first few changes until I read a couple of years ago in the various LS1 forums that people were migrating to a 10w-30 oil to quiet their engines. Since both oils appear to have similar viscosity for warm temperatures, you can use SAE 30 instead of 5W30 in your engine during warm weather. 6,881. Therefore, there is no problem in mixing 10w30 and 5w30 since one will be topping up. We would like to show you a description here but the site won’t allow us. Using the wrong oil in a lawn mower can be detrimental to its performance. This is because a 10w30 requires less viscosity inhibitors to behave like a 30w at opertating temp compared to a 5w30. If the temperature reaches even higher levels, the 10W30 will not be very efficient and you should go with the 15W40 oil. Another imp. If you want something thicker, you can use conventional 10W-30, which is very shear-stable and should be even thicker than synthetic 5W-30 and synthetic 0W-30 throughout the OCI. As far as a 5w30 versus a 10w30 I think it has to do. It can provide the user with noiseless and smooth gear and clutch operations. Your owner's manual for the 2013 Durango states 5w-20 recommended, not mandatory. This is because both 5w30 motor oil and 10w30 motor oil will have the same viscosity in operating temperatures. 1) 10w30 oil is a bit thicker than 5w30 oil, meaning that it may provide better protection during startup. Today’s 5W-30 motor oils provide consistent. The manual allows you to run anything from 0W20 to 10W30. -for at least the last 40 or 50 years. 5W. In warmer regions, the thickness of 10W30 will make it easier to flow. (you must follow the manufacturer’s. This is why it is the most suitable for use in the winter. AMSOIL 0W-30, 5W-30 and 10W-30 synthetic motor oils are ALL 30 weight oils. No, it’s not safe to use 10w30 in place of 5w30. 10W30 should only be used if your ambient temperatures routinely exceed 100-110F for the duration of the oil lifespan. Yes, you can use 20W50 instead of 10w30 in your generator. #4. People are running this in engines that call for 10W30, 5W30, 10W40, etc. Tire;. #9 · Nov 12, 2005. They have similar ingredients other than the viscosity level. The only difference between these two oils is cold flow ability: a 10w30 oil will move slower than a 5w30 oil during cold startups. Thanks. 5W30 will give you the best fuel economy and performance. For temperatures below 20 degrees Fahrenheit, utilizing a 10w30 oil is not an issue. Apr 25, 2013 / 5W-30 or 10W-30. It is recommended for use at -13°F up to 95°F / -25°C up to +35°C (outside temperature). I use it just fine into sub zero territory (into the minus teens) in the dead of winter with no issues. I use 10w30 in winter and straight 30w in summer. The 40W hot visc is a complete non-issue. Being synthetic, it can take the heat of deep south and August. Most engines that. While both winter-grade oils perform similarly and reduce drag during cold startups, the 10W-40 motor oil is more viscous in hotter climates and has a better temperature spectrum. If you have accidentally used 15w40 motor oil instead of 5w30 motor oil, it can increase your fuel consumption. Would think it'd be recommended except maybe for break-in. Unless you are experiencing some very cold, and I mean VERY cold temps, 10w30 will work fine. 6 So you can see the synthetic 5W-30 A3/B4 oil is a thicker oil than the 10W-30 GF. Basically this is the only vehicle we have in the family that doesn't. This is because both 10W30 and 5W30, meet the SAE standard for viscosity at engine operating temperatures. So, if the manual indicates that your car will operate in -22 degrees Fahrenheit or lower winter weather, use the recommended 5W30 oil. Can I use 10W40 instead of 5W30 in my lawnmower? You can use 10w40 in your lawnmower, but that doesn’t mean you can put it instead of 5w30 oil. Clovis, CA. Therefore, there is no problem in mixing 10w30 and 5w30 since one will be topping up. ”. You can use them interchangeably, as they have the same operating viscosity value. I wouldn't use 10W oil in any engine. 3cst at 100c. This will result in less fuel efficiency, less horsepower, and more engine damage because it will have to work harder to rotate. This enables the 5w20 motor oil to reach engine parts quicker and create less drag that reduces fuel economy. . If you buy the engine oil and find it rated 10w30 or 5w20, you can rely on them. At operating temperatures, both oils will be 40wt, but there’s an important difference between them when it comes to viscosity – 5 weight “5W” stands for colder temps while. 5 to 16. #15. If I were in Vegas or some other location with hot summers, I'd run 10W30 for the added protection during the summer. Among those reasons, the working temperature is a factor. While it may be tempting to use 5W30 instead of 10W30 in your lawn mower, it is important to note that this is not recommended. You can jump in between the two grades as much as you like. Manufacturers designed these oils to protect the engine while warming up. So, it’s not suitable if you mixed 10w30 oil with 5w30.