To better understand, in a 5W-30 oil, the "W" stands for winter performance. 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. Although mixing the same grade engine oils such as sae30 and sae40 is acceptable mixing two different grade oils is not advisable. Mixing 5w30 and 10w30 still yields a 30 wt. 5w40 oil is thicker than 5w30 oil, and provides better protection for your engine, particularly during cold starts. Most new cars today run 5W30 and most oil change shops use 10W30 for everything. of oil to one gal. Both syn oils. Key Point: If you mix 5W-30 oils, change the oil entirely as soon as possible. 5w30 and 10w30 engine oils have close viscosity, and thus there is no harm in mixing them. These two oils are a perfect blend with almost identical viscosity. Even the oil mix of the synthetic and conventional blend will show you no harm to your engine. 10w30 is much denser than 5w30, and the thicker fuel out of the two, making it the more dense fuel. A 10w-30 should have a 10w-30 viscosity whether it's conventional, synthetic, or blended. 5 qts M1 15W50 plus 8 oz VSOT, the spec oil is M1 0W40 but my engine is most quiet with thinner oil. This blog post will clarify the confusion and explain the difference between these two. Mixing the viscosity of oils will not have any effect on the engine. 5w30 oil is lighter, and its density is less. It is safe to mix 5w20 and 5w30 as long as you follow some recommendations. In this post, we’ll also look at if it’s safe to use regular oil after synthetic oil. So if you want to mix 20w50 oil with a 10w30 oil or if you have to, you can mix them both up. Sometimes thicker oil is even recommended in higher mileage engines, although I believe the jury is still out on it. If you want to come up with your own oil mixture, just check the oil number of the two oils. It is okay to mix, though. You can do it with 5w30. The two motor oils will stay the same oil. Thanks to their close viscosity, mixing the two oils will have no damaging effect on the engine. So in the 5w30, we have 25. On the other hand, the 0w30 motor oil will break down faster than the 10w30 motor oil. Yes, you can use 10w30 instead of 5w30 engine oil. As such, mixing synthetic. 6. 5w30 oil, on the other hand, is thinner and designed for use in colder temperatures and lighter engine loads. If you are in that part of NorCal where it's truly -10 or more, consider M1 AFE 0w-30. Location. #2. regular oil and advising whether mixing motor oil is okay. It is safe to mix 5w20 and 5w30 as long as you follow some recommendations. They’re both very similar in viscosity and can be used interchangeably without negatively impacting your car’s performance. “5w20” means the oil weight in cold temperatures is “5,” and in high temperatures, the weight is “20. Mixing the viscosity of oils will not have any effect on the engine. Motor oil is a vital component of any engine, ensuring its smooth operation and longevity. Let’s find out more about Engine Oil 10w30 vs 5w30. That means mixing single grade type of oils with their single grad counterparts. First off, you need to check your owner’s manual to see if your engine is compatible with both oil grades – 5W30 and 5W20. No sense wasting good oil. 3w36. 5w30 oil is lower in viscosity and there is a small chance of the car not running. If you mix together a 5w-30 and 15w-50, the more volatile 5w-30 is still going to evaporate at high temps, and the resulting mixture will probably not flow quite a well as a 10wt at low temps. Most engine oils will have little trouble mixing with one another, as long as they’re of a similar type. W means winter. I have never ever seen an owners manual that recommendeds. ROCHESTER, NY. So, it is best for vehicles running in cold climates to use the 5W30 since it is thinner than the 10w30. So in using 0w30 motor oil in replacement to the 10w30. So we're effectively down to 5W20 vs 5W30 discussion, of which there are already plenty in the archives. Jan 30, 2015. 5w30 – 5w-30 counterpart registers 9. However, you should use the same grade and type of oil. If you still got 5W30 inside the engine when you mistakenly refilled 5w20, the two oils – 5w20 and 5w30 – would mix together. Mixing ratios of gas to oil vary, but usually range from 30:1 (4-1/4-oz. Yes, you can mix 5w30 and 10w40. Now, let’s address the question of whether you can mix 5w30 and 10w30 oils. The engine will never notice the difference, and you or your friend won't either. 6L Ford V8 - I own a F-150 2001 with a 4. and how it doesn't agree with these motors due to very tight clearances. Therefore, there is no problem in mixing 10w30 and 5w30 since one will be topping up. #7. At operating temperatures, both oils will have the same viscosity (30) and will flow and protect identically. Uses of 5w30 & 5w40. Then we add that to the 8. However, it is not recommended to do so. SAE 30 is a single-grade motor oil that provides adequate lubrication to engine parts when operating under hot viscosity conditions. Yes, you can mix 5W20 and 5W30 and it doesn’t bring any harm to your engine. So for the question, the answer is yes. 2cst M1 5W30 has a KV40 of 61. In the case of lawn mowers, two-stroke engine oil is mixed with the gasoline before it goes into the tank. Mine uses 0w30. Mahzurrah! Mar 5, 2021. It will work great in your car in Georgia year-round. 25 qts of 0-20 and 2. Location. Yours could be different tho. Eventually, it will increase its operational capability in cold weather. Mixing SAE 30 and 10w30 is a terrible idea and might have you counting losses. Just like mixing full synthetic with semi-synthetic oil – mixing different viscosity such as the 5w30 and 5w40 is not a bad idea, especially if you are running low on oil. Their chemical compounds are the same. Just like mixing full synthetic with semi-synthetic oil – mixing different viscosity such as the 5w30 and 5w40 is not a bad idea, especially if you are running low on oil. These two engine oils are very similar in viscosity; hence, they might mix perfectly in. Yes, just that. 1. Yes, It’s safer to mix 5w20 with 5w30. It’s pretty much okay to mix 10w30 with 5w30. Plus, both of them have the same viscosity at temperatures. of oil to one gal. However, it may void your warranty if you tell the dealer about it. In some cases, this may even be a better option for people who live in colder climates. In warmer regions, the thickness of 10W30 will make it easier to flow. However, if you’re in an emergency situation where you have no other option, mixing 10W30 and. Amsoil pricing Is based on their cost. Can you mix 10W30 and 5W30 in lawn mower? If your mower manual calls for a 5W-30 engine oil, using a 10W-30 oil is also acceptable. Germantown TN 38138. The recommended viscosity for jeep vehicles is 0W20, 5W20, 5W30, or 10W30. 5W – 30 and 10W – 30 lubricants have the same viscosity at the operating temperature of the engine. Yes, they can be mixed without problem. 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. But it will be true until you mix only a quart of other oil to your usual engine oil. 10W30 vs 10W40, Differences #4: Fuel Efficiency Dynamics. THE 10W30 OIL & ITS BENEFITS. However, it is advised against because of multiple reasons. Keep in mind oils do not mix if you have 5w30 and add 10w30 it won't give you a blens both oils will stay seperate so you will have a few quarts 5w30 and a quart 10w30 they never mix. But generally, it’s best not to make a habit of blending different viscosity motor oils. 5)/2 = 9. I always go with what other owners say tho before autozone. This combo is perfect and pretty much safe to use. of oil to one gal. All but 2 of my family's vehicles use 20 weight oils. ") either of the Phillips Choice 5w20, 5w30 syn-blend oils sounds fine to me. If you drive hard, change the oil & filter more often. Yes, you can mix 5W20 and 5W30 engine oil as it won’t hurt the engine immediately. First, make sure that your vehicle can use either type of oil. I recently noticed that it calls for 5W-20 engine oil. Because of the differences in the two types. Your vehicle’s engine will not fall apart if you mix and match different oils, especially if you need a top-up. It’s worth remembering that 10W-30 has more density than 5W-30, so make sure you pour an appropriate amount when mixing. That may be true with Mobil's offerings, but Castrol, and Pennzoil 10w vs 5w can be many CST's different. What oil Can you mix with 5W-30? These two motor oils are very similar in viscosity; hence, they might mix perfectly in your engine. Mixing 5w 30 with 10w 30 is permissible as long as the ratio is appropriate, but it is not recommended by most vehicle manufacturers. 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. Is it safe to mix different types of engine oils? Mixing. And windchill only affects skin. The reason for not wanting to use 5w50 is the reports of 5w50 oils eating rod bearings in these engines. When it comes to 5W-20 or 5W-30 vs 10W-30, the opposite is true: the 5W oils will flow a little better in the cold than a 10W oil for maximum cold-weather protection and easier cold starts. The only difference between these two oils is cold flow ability: a 10w30 oil will move slower than a 5w30 oil during cold startups. Regular 10w30 oil can be used and mixed with the gas, or 2 stroke oil. 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 shortest answer is yes. 5w40 Subaru. However, you need to know the right way to do this. Feb 2, 2006. This is because both 5w30 motor oil and 10w30 motor oil will have the same viscosity in operating temperatures. Jul 7, 2013. You can also use the 0w30 motor oil that can also be used in winter conditions. But he has some 10W-30 in his garage, so he uses it to change the oil. But keep in mind that 10W30 has more density than 5W30. Most oils will mix perfectly, provided they have a similar synthetic. #5. In layman terms, your engine will be able to handle higher. I do use add oil to aim the grade to where I want to try. Mixed engine oil is better than low, dirty, or no oil. Can You Mix 5W30 And 10W30. As for oil viscosities, mixing 10W30 and. See moreWell, the answer isn’t quite as simple as a yes or no. roy1 Discussion starter. But, it doesn’t pose any harm to your engine. Viscosity decreases as the temperature of the oil increases. If the engine is used a little bit around the house, any 5w30 full synthetic or 10w30 will do. #9. When you mix them, it can’t serve the engine needs in winter. The only difference between the two oils is the low temperature point, with the 5W30 oil functioning slightly better than the 10W30 oil. You'll find most SAE 30's run 11 to 12 cSt @ 100C. Daily oil intake recommendations vary based on your gender, age and activity level. What are the opinions of mixing 0w16 and say 10w30 or 5w30 (in summer of course) to get closer to 20 weight? I know some will say "just buy the proper grade oil" but my first sentence explains why I ask this. The short answer is…yes. #4. 5w30 and 10w30 are two of the most common motor oils. 3. Thanks to their close viscosity, mixing the two oils will have no damaging effect on the engine. To conclude, you can mix 5W20 & 5W30 provided that they’re from the same brand and API. This motor oil is used commonly in different types of vehicles. If you are one of these car drivers, you should know this by referring to your owner’s manual. However, just because you can mix it, it does not mean that you have to. This is because both oils have the same API classification (in this case, SN). A mixture of two motor oils that have different viscosity and also have different weights is done by most drivers. Especially given that you live in Florida, 10W-30 vs 5W-30 is not an issue at all. Compatibility of 5w30 and 10w30. 5 of 5-30 if it was newer. What About Mixing Different Brands Of Motor Oil? For example, assume that you are using Quaker State 5W-30 in your engine and for whatever reason, you need to add oil during a long trip and only Valvoline 5W-30 is available. You can’t mix the two because they aren’t of the same grade. You aren't really supposed to mix your own "synthetic blends," especially across brands, so that may have a bit to do with it!. 25 qts of 5-30. Yes, you can mix 5W20 and 5W30 oils together, but only under specific conditions. Takedown request|View complete answer on jiffylube. Whether it is safe or not to mix oils of different grades depends on the engine. All in all, be it 5w30 or 10w30, either is better for your vehicle. Engines run fine!0. The 0w30 motor oil is a special kind of motor oil. Any quality CK-4 oil can be used in that motor. In this article, we will5w30 is preferred especially in colder climates. In the cars I mix 1 qt of Mobil 1 T&S 5w-40 with either 4 qts of Mobil 5w-30 or Mobil 10w-30, so thinner is again fine. First, mixing motor oil grades can create an oil pressure decrease as the engine revs higher. Temperature Range. There's been talk before of owners using too heavy of a wt. As a result, combining the two oils in your engine may be okay. From different perspectives, the 5w30 looks to be a better option. . People are running this in engines that call for 10W30, 5W30, 10W40, etc. DS 30-weights are very thin (9. That's for cold starting in winter. Which oil is better 5w30 or 10w30? 5w30 is less viscous than 10w30.