I use 10w30 year round for all my OPE needs. That may be true with Mobil's offerings, but Castrol, and Pennzoil 10w vs 5w can be many CST's different. Obviously, a 10W-40 is thicker than a 10W-30 at high temperature. The following number is the viscosity, or thickness, of the motor oil at low temperatures. Yes, you can mix 10w40 to 5w30 if they are on the same brand. For the 5w20 motor oil, the twenty indicates that the motor oil has a low viscosity and is also thinner in high temperatures. Takedown request|View complete answer on jiffylube. It’s worth remembering that 10W-30 has more density than 5W-30, so make sure you pour an appropriate amount when mixing. I use 5w30 in the snowblower, 10w30 in everything else. What happens if I use 10w 30 instead of 5W-30? Most oils will mix perfectly, provided they have a similar synthetic. #7. 10w30 – has a rating of around 5. The short answer is yes, you can use 10w30 instead of 5w30, but there are some things you need to keep in mind. s then devide. Firstly, it is important to understand the viscosity of each oil and what it means for your engine. Yes, you can mix 10w40 to 5w30 if they are on the same brand. On my daughter's oil consuming tercel, I add 1 qt of 20-50 Castrol HM to see if thicker. So if you live in a warm climate and find yourself with a bottle of 10W30 oil, don’t worry – you can use it without any problems. Both oils have different viscosities and characteristics, and combining them can alter the oil’s protective properties and reduce its effectiveness. From Shell. At no cost can you mix 5w30 and 10w30. 5w30 is a multi-grade oil, on the other hand, sae30 is a monograde oil. Whether you’re topping your 5W30 engine with 5W20 oil or vice versa, you are definitely not triggering any harm or potential damage to the engine’s core components. Yes, you can consider using 10w30 instead of 5w30 in the summer when temperatures are higher. You can use a mixture of 5w30 and 10w30. For comparison’s sake, SAE 5W-30 and SAE 0W-30 will flow better at colder temperatures than SAE 10W-30, while still providing protection at higher temperatures. 5w30 oil is lighter, and its density is less. I agree. 731. 5 then if U check the definition of oil by viscosity, U will see that 9. The 10w30 motor oil is suitable for engines using advanced fuels such as biofuel and biodiesel. The main difference between SAE 30 and 10w30 is that 10w30 is a multigrade oil while SAE 30 is a single-grade oil. Mostly 10w30 and 10w40 but the Rislone is more like a 20 weight. Thinner oils equate to lesser drag, making them more energy-efficient. 5 V6) so that probably explains why the later model's manuals state 5w30. whereas 10W30 oils are more suitable for cars that run throughout the year in higher temperatures. This is because the naturally thicker consistency of 5w-30 oils means that the oil breaks down slower despite the heat. SP, SN (5W-20, SAE 5W-30, SAE 10W-30, SAE 10W-40, SAE 25W-60*) API: SL, SJ (SAE 25W-60*) ILSAC: GF-6 (SAE 5W-20, SAE 5W-30, SAE 10W-30) Specifications may vary by viscosity grade. All in all, be it 5w30 or 10w30, either is better for your vehicle. The TSB about the use of 5w20 was for the 3MZ-FE engine (the 3. Potential Issues with Mixing 10w30 and 5w30. The engine might be on its way out because of lack of oil. Dec 17, 2016. I have a bit of 5w-30 oil left and I was wondering if I can mix 1 liter of 5w-30 to my 4 liters of 0w-20 oil. You'll find most SAE 30's run 11 to 12 cSt @ 100C. Mixing the two oils together can cause the oil to break down and lose its ability to lubricate and protect your engine. In the case of lawn mowers, two-stroke engine oil is mixed with the gasoline before it goes into the tank. However, conventional oil will detract from the superior performance of synthetic oil and reduce its benefits. Can I use 5w30. You should now know that yes, you can use 10w30 instead of 5w30 for your car. Take a close look at the viscosity numbers on the product data sheets. Avoid spilling during mixing the oil as it can make a burning scent. 10w-30 Motor Oil. 10w30 and 5w30 are close enough oils; Mixing oils does work, but… You will reduce the life of your engine; Know what you’re doing; Never mix synthetic and non-synthetic oil; Don’t think that just because you put a lighter oil in your car that it is better for the environment; Oil has an expiration dateWHAT ABOUT MIXING ENGINE OIL BRANDS? Yes. Yes, you can use 10w30 instead of 5w30. You have some 5w20 in your fuel tank, but you are planning to pour some 10w30. #4. However, if you use these motor oil, the new viscosity will be higher than the 5w30 and thinner than the 10w40. It is recommended for use at -13°F up to 95°F / -25°C up to +35°C (outside temperature). 10W30, in this context, is superior to its 10W40 counterpart in offering. That’s just a general overview of the difference between 10w30 and 5w30. Starting the engine with warmed up oil is THE way to do it, and makes mixing totally not needed. . 5w30 oil is lower in viscosity and there is a small chance of the car not running. 10w30 oil type covers a significantly smaller range of temperature. It is a thinner oil when operating at lower temperatures. Resources Can I Mix 5w30 and 10w30 Oil? So, mixing 5w30 and 10w30 oil will not cause any harm, so that you can mix the two of them. The answer is yes; you can mix 5w20 and 10w30 oil. In most cases, you can always use the 10w30 oil, but be sure it has the appropriate weight for your vehicle. In the case of 10W30 oils, the temperature range is -25°C/-13°F to 30°C/86°F. You are not allowed to mix 5w30 with sae30 because both engine oil has different viscosity grading. Motor oil of 0W20 grade is supposed to be kind of like 5W20, but with better cold start performance in winter in colder climates. Probably the worst thing you could do to an engine other than run it dry of oil. Aug 2, 2011. Can You Mix 10W30 And 10W40 Motor Oil? You should avoid mixing 10W30 and 10W40 motor oil whenever possible. However, remember that you will not have a better performance, and this mixing is not recommended. 5, so equal parts give a cSt half way in between (8. Don’t mix oil types: Mixing different types of oil, such as synthetic and conventional, can cause problems like. 10w30 is much denser than 5w30, and the thicker fuel out of the two, making it the more dense fuel. Always follow the vehicle owner's manual to determine the correct motor oil specification, viscosity grade, and oil drain interval for your engine. Add to that, being synthetic is an extra margin of safety. However, it is crucial to check your vehicle’s owner’s manual to. If you mix 5w20 and 5w30 engine oils, you won’t be getting the full benefits of either oil. Mixing 5w20 with 10w30. 10W30 vs 10W40, Differences #4: Fuel Efficiency Dynamics. So a lot of drivers are already doing it. Additionally, the mixture of 5w30 and 10w30 could lead to various issues. Synthetic 5W-30 can be used in all temperatures. Jul 7, 2013. For example, if the oil is a 5W-30, the 5W part describes the viscosity of the oil at low temperatures. If you put together these oils, it will boost up oil pressure when cornering at high revs. Both are the same viscosity at operating temperatures. You may notice that ISO 46 can replace both 15W and 20W SAE oils. 6. The short answer is yes, you can use 10W30 oil instead of 5W30 oil in your lawn mower. #2. In warmer regions, the thickness of 10W30 will make it easier to flow. However, just because you can mix it, it does not mean that you have to. It won't harm your engine to mix, for example, Quaker State® motor oil with Pennzoil, as long as the oil you use is the weight (or viscosity) recommended in your vehicle owner's manual. You can mix different grades of oil with no bad effects. There's been talk before of owners using too heavy of a wt. 10w30 provides sealing action in the engine due to the fact that it is thicker than 5w30 engine oil. F-fan - As far as home brews go, 5W-30 with SAE 30HD should be a very practical mix. After all, Jiffy Lube ® knows oil. However, some drivers allege that it is safer to mix two straight weight oils or multigrade, instead of mixing straight weights with multigrade. 1 post · Joined 2017. Uses of 5w30 & 5w40. There is no mention of the 15w40 motor oil for these engines, so it might be better to avoid it. So is it okay to mix the heavier 10w30 oil with 5w30 oil? Yes, you can mix these two oils if you are topping up. Theoretically it is not advisable to blend oils. So, They’ll easily blend with each other wheater you mix with 5w20 with 5w30 or vice versa. My resulting viscosity is in the range of a 5W-30. Both syn oils. So 5W-30 has a lower viscosity at cold temperatures than 10W-30 because its viscosity index is lower than 10W-30’s. Can You Mix 5W-30 and 10W-30 Oil? Yes, it is perfectly safe for you to mix 5W-30 and 10W-30 engine oils. In an 07 I do no think it would be an issue at all to go 2. M1 10W30 has a KV40 of 63. They can’t be mixed during low temperatures. As per API recommendations (1) for car engines, you can use 10W – 30 oil if the maximum. The advantage of a 0w30 motor oil is that the number zero is far from thirty (30) than ten (10). You can mix 5W30 and 5W20. However, if you do use 10w30 in a 5w20 engine, it may lead to several negative effects on your car –. I'm about to do a super frankenblend in my moms car to use up my leftovers. Gather your materials: You will need two containers of motor oil, one 5W30 and one 5W40. However, if you use these motor oil, the new viscosity will be higher than the 5w30 and thinner than the 10w40. Stick to one type and viscosity rating. You may combine 10w 30 and 5w 30. 5676 posts · Joined 2009. If you wish to use 10w30 instead of 5w30, then you need to remove the old 5w30 entirely before pouring the 10w30 you just bought. If you live in a region that experiences temperatures below -20 degrees Fahrenheit, however, you should use 5W30 engine oil. 5w30 oil is thinner than 10w30 oil because of its lower viscosity. No one knows if the resultant mixture is better or worse than the unmixed oil without expensive and extensive testing. The only difference between the two oils is the low temperature point, with the 5W-30 functioning slightly better than the 10W-30. Even though you're mixing a 5W20 with a 5W30 50/50, the 5W20 could have a different pour point, than the 5W30. 5%. Dec 17, 2016. Can You Mix 5w20 And 5w30. Can I mix 5w20 and 10w30? It should be fine , considering the temps, and that the suggested oil viscosity is usually 5W-30, so two quarts of 5W-20 and three of 10W-30 probably come pretty close. 5w30 vs. When comparing 5w20 vs. In the middle of the marks is just great too. Yes, you can mix 10w30 and 5w30 engine oil. Especially given that you live in Florida, 10W-30 vs 5W-30 is not an issue at all. Can you mix 5w30 and 10w30? No, you can’t get any desired result by mixing both oils because both oils come in different grades. . However, the 10W – 30 oil will be thicker when it is cold. 8,146. I was told that this was a bad idea and it shouldn't be done. Can You Mix 5W30 And 10W30 Most engine oils will have little trouble mixing with one another, as long as they’re of a similar type. You WILL NOT get a 5W by mixing a 10W and a 0W. Can You Mix 5W30 And 10W30. So when you compare 5W30 vs 10W30, 5W30 oil has a lower number (5), implying the oil thins fairly in an extremely low temperature, making it a better winter engine oil than 10W-30. Manufacturers designed these oils to protect the engine while warming up. Feb 5, 2014 / Mixing 10w30 with 15w40 Kubota oil #5. So, can you mix. The comparison table between 5w30 and 10w40 is given in the below table: 5W30. 4 qt of 5w20 + 1 qt of 5w30). It is denoted by a combination of numbers and letters, such as 5w30 and 10w30. In fact, because of its wider viscosity range and steeper viscosity curve, 5W30 likely does not thin out as much as 10W30 when ABOVE normal operating temperature. Can I Mix 10w30 and 5w30? Most oils will mix perfectly, provided they have a similar synthetic. They will mix perfectly. 5w30 oil is thinner than 10w30 oil and therefore will not provide the same level of protection to your engine as 10w30 oil. This motor oil is used commonly in different types of vehicles. Originally posted by boxcartommie22: i got this from the million mile book. There is absolutely no risk of harming or potentially damaging the engine’s essential components by using 5W20 oil to top off a 5W30 engine. Therefore, there is no problem in mixing 10w30 and 5w30 since one. #8. You can mix them and use them accordingly. This comes from people who own these cars not a computer telling a guy at a store. Pennzoil Platinum is a thin 30 or Valvoline Advanced also in 5w-30. winters as cold as -20F. So, you may be wondering if you can use 10w30 instead of 5w30 in your vehicle. This makes it better at protecting your engine from wear. If you buy the engine oil and find it rated 10w30 or 5w20, you can rely on them. These specifications are to be used as guidelines only. 5W-20. So, it is best for vehicles running in cold climates to use the 5W30 since it is thinner than the 10w30. Quoting Stephen Miller from Shell: “For instance, 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. How to Mix 10w30 and 5w30. 3 and 12. 7cst), so they are almost a 20-weight. This article is a must-read for those who want to fully comprehend the implications of switching between these two oil types. Your car manufacturer’s recommendation notwithstanding, mixing 5W20 and 10W30 won’t cause any harm to your engine. And instead of just pouring the different oils into the engine for the engine to mix, it is a lot more fun to play Dr. Key Point: If you mix 5W-30 oils, change the oil entirely as soon as possible. Can 5W 20 and 5W 30 be mixed? You can mix a 5W20 with a 5W30 oil with minimal amount of issues provided it the same manufacturer and the same API classification. So you can use 5w30 motor oil for your engine because it is recommended and suitable. It said on the bottles that the synthetic and non-synthetic oils are. These vehicles can be trucks, SUVs, and others. Still, the safest way to do this is. At best, if you mix say a 10W40 and a 0W20, you will get a 10W30 at 50/50 ratio. A mixture of two motor oils that have different viscosity and also have different weights is done by most drivers. In my neck of the woods it's usually right in between both and I've used both, one or the other, for years when changing oil on these vehicles. It is advised that 5w20, 5w30, or even 10w30 motor oil be used in some Chevrolet engines in summer. Read Also: 10w30 vs. 10w30, on the other. The 5w30 oil will thin out the 5w20 oil and won’t flow as well in cold weather. It is much better if the two oils are. Here’s a look at 10w30 and 5w30 and how they affect your engine. If your running it day in and day out, I would use a HDEO 15w40, or 15w50.