Not only that, you could run that engine on 0-40 5-30 10-40 etc. Key Point: If you mix 5W-30 oils, change the oil entirely as soon as possible. There are no significant damages or problems that you will have to deal with. 20W40 oils on the other hand work better at a bit higher temperature. 5w40 Subaru. 6 and 9. While the viscosity difference between these two oils is minimal, there is still a difference. However, doing so is not ideal if you want to reap the benefits of what the motor oil brand intends. It is a thinner oil when operating at lower temperatures. The main difference between 5w30 and 10w30 is that the latter has a higher Viscosity Index (VI) than the former. However, the past two times I've changed the oil I didn't notice this and used 10W-30 instead. 7, you can run either 5W20 or 5w30. The quick answer is that it is not a good idea to switch out 10w40 instead of 5w30. If you find yourself asking whether can I use 5w40 oil instead of 5w30, the answer is yes, in most cases. Therefore, you can mix 5W30 with 10W30 with no ill effects whatsoever. How to Mix 10w30 and 5w30. They are both multi-grade oils and are compatible with each other. Therefore, they will flow in the same manner. Posted on January 5, 2023 September 25, 2023 Author admin Tags accidentally mixed 5w30 and 5w20, can i mix 5w30 with 5w20, can i mix 5w30 with 5w20 synthetic, can you mix 5w20 and 5w30, can you mix 5w30 and 5w20, can you mix car oil, mix 5w20 and 5w30 Post navigationIf you are concerned get the thicker syn to mix in the blend and call it a day (i. Is it OK to mix 10W30 and 5W20? You will be fine, just don’t overfill. The owner’s manual for your lawn mower lists the mixing ratio of gas to oil. It means that SAE 30-grade motor oil cannot be used in the engine if you’re driving a vehicle in. These two oils have contrasting viscosities and are designed for completely different types of use. The properties 5W-30 will be diluted if the two are used, and engine performance will probably suffer. 5%. From Shell. Yes, the oils may have various additives, which is why the weight rating is varied. What oil should I use in my. 4L. Bottom Line. On 8/14/2012 at 5:44 PM, Steptronic said: Since we do not have much "temperature variations", practically it should be okay to mix both. It is okay to mix, though. 5W-25 for a car you actually care about, I wouldn't. Compatibility of 5w30 and 10w30. Considering the most critical concerns while mixing the two oils, 5w-30 and 10w-30 are safe and compatible to mix together. That said, there is no issue in using two different oils in an engine. I do use add oil to aim the grade to where I want to try. F-fan - As far as home brews go, 5W-30 with SAE 30HD should be a very practical mix. For example, if the oil is a 5W-30, the 5W part describes the viscosity of the oil at low temperatures. Yes, you can mix 10W30 with 5W30. Thin liquids that flow easily, like water, have low viscosity. 5W-20 flows more easily due to its lower viscosity; however, at 212°F, 5W-30 is slightly more viscous. In warm climates, they will act very similarly. That said, for warmer areas or throughout the warmer seasons, we use 5w-30 motor oil instead of 10w-30. This means that this motor oil is less dangerous when below freezing. The reason being is that 5w30 and 10w30 oil have different viscosities. Although mixing the same grade engine oils such as sae30 and sae40 is acceptable mixing two different grade oils is not advisable. No Doom and Gloom will result. 10w30 provides sealing action in the engine due to the fact that it is thicker than 5w30 engine 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. If your car is not capable of handling the cold thickness of 10W30, then it should not be mixed. For example, do not mix 10w-30 motor oil with 5w-30 motor oil. There isn’t a big difference between 5w30 and 10w30, but they have different viscosities. J. The 5w20 oil is significantly thinner than the 10w30 oil. 5w30 on the other hand, is a multi-grade oil that has two ratings. The short answer is, yes, you can technically use 10W40 instead of 10W30. 5w30 oil has a lower viscosity than 10w30, making it slightly thinner. It was a mix of Valvoline Synthetic, 10w30 and 5w30 and an AC Delco filter. when you mix oils you add the wt. CK-4 (CES 20086) was made specifically for that. I was told that this was a bad idea and it shouldn't be done. If you are not in a situation where low-temperature startup anti-wear protection is not critical to you, then using 10w30 oil can be fine as well. 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. However, it’s not the best idea. 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. Yes, you can mix 10w40 to 5w30 if they are on the same brand. You can mix them and use them accordingly. Your engine won’t explode or freeze up if you do. 5w30 – has a rating of around 11. In this article, we will explore the implications of mixing these oils and whether it’s a good idea for your vehicle’s performance and longevity. On the other hand, the 5w30 oil is also excellent and efficient. This article is a must-read for those who want to fully comprehend the implications of switching between these two oil types. If the temperature reaches even higher levels, the 10W30 will not be very efficient and you should go with the 15W40 oil. If you can easily find it in copious amounts, then I'd. Technically, you can mix SAE 30 oil and 10W30 oil, but it’s generally not advised to do so. PlasmaBomb Lifer. No need to mix. Castrol GTX MAGNATEC Motor Oil 5W30 Full Synthetic 5 L. Despite the fact that their densities differ, these two oils are quite similar. If the deal is really, REALLY good, the I'd also buy all the 10W-40 I could stash/stand having - DS oils are really good in all grades, and. -Use SAE 30 in warmer temperatures of 40° F and higher (5° C and higher) -Use SAE 10W-30 for a varying temperature range of 0 to 100° F (-18 to 38° C), this. However, if you have no choice, then you can do it. Like engine oil, you can use multiple oils in the same engine if they are of the same synthetic type. O. You should now know that yes, you can use 10w30 instead of 5w30 for your car. 5w30 oil is lower in viscosity and there is a small chance of the car not running. 4 100 degrees cSt, so you can call what you made 5w25, but more. 10w30 Nissan. In the 10w40 we have 30. r/MechanicAdvice. However, to clarify, the 10w30 has a higher density than the 5w30. Mixing 10w30 and 15w40 motor oils is generally acceptable but not recommended unless it’s in an emergency. 5 V6) so that probably explains why the later model's manuals state 5w30. 30 weight goes from about 9. However, 5w30 is better than 10w30 because it has a higher viscosity, which means that it is thicker and more viscous. Both oils have almost the same viscosity and the same operating range. At best, if you mix say a 10W40 and a 0W20, you will get a 10W30 at 50/50 ratio. I have never ever seen an owners manual that recommendeds. The downside to 10w30 is it can be had in some low quality lubes, so make sure you go for a quality. It is not recommended. Adding a 10W-30 to a 5W-30 should be fine for a top-up, but is not ideal for a complete service interval. SAE 30 is a single-grade, while 5W-30 is a multi-grade motor oil. That may be true with Mobil's offerings, but Castrol, and Pennzoil 10w vs 5w can be many CST's different. If you search online about mixing oils, you will get a lot of people telling you it is okay. When buying motor oils, it is good to consider options from top brands because they are typically made with OEM-approved, premium additives. So if you’re a little hesitant about the safety, there’s no need to be concerned as mixing these two oils will not harm your engine. 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. Adding 10W30 to your current mix is safe and will not cause your engine to run any worse. #3. Sep 11, 2012. It is, however, somewhat thicker than 5W20 at higher temperatures. Add to that, being synthetic is an extra margin of safety. Your car manufacturer’s recommendation notwithstanding, mixing 5W20 and 10W30 won’t cause any harm to your engine. I definitely agree with the other posts that there is no way that you can tell between 10w40 and 5w30. However, it is still not advisable since it may void your car’s warranty. K. 3w36. But, we recommend you not mix or blend 10w30 and 10w40. You can do it with 5w30. 3. 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 fact, according to many drivers and mechanics on different forums (including Bob is The Oil Guy), 5w30 is actually a better multi-grade oil to use on engines with “5w” specifications. What happens if I use 10w 30 instead of 5W-30? Most oils will mix perfectly, provided they have a similar synthetic. Is it safe to mix different types of engine oils? Mixing. The protection offered by 10w30. The viscosity grade of 10w30 and SAE 30 is the same at operating temperature, so it is perfectly safe to use 10w30 instead of SAE 30 in your lawn mower. It gets really interesting when adding multiweight to straight weight. However, 10w30 is a multigrade oil that performs well in hot and cold temperatures. Most new cars today run 5W30 and most oil change shops use 10W30 for everything. The same brands would mean that they are compatible in terms of their additives. 5w40 motor oil has a winter viscosity grade of five, for example. Additionally, the two oils have different additives. W means winter. However, 10w30 is a multigrade oil that performs well in hot and cold temperatures. Using 10W40 in an engine designed for 5W30 can lead to: Delayed engine start: The thicker 10W40 might not flow as quickly as 5W30, especially during colder conditions. However, because it is thinner it. 10w30 oil is thicker and heavier than 5w30 oil because it has a higher viscosity at low temperatures. It is also important to remember that while 5w30 will work in a car that requires 5w20, it may prevent the engine from achieving maximum fuel efficiency. As a result, combining the two oils in your engine may be okay. e. Ignition – Since 10w20 oil is thicker and combusts at a higher temperature of -18° to 30° Celsius, it may make ignition harder, especially in lower temperatures. Thanks Again. So, you are just going to get some quarts of 10w30 and 5w20. The answer is yes. Yes anytime with a new small engine or really any engine you will get some silver like that in the oil but after a few changes it will go away. Change the oil entirely at the earliest opportunity to ensure consistent protection. Below 40°F (4. If you’re wondering whether you can mix 5W30 and 10W30 oil, the answer is yes. Can you mix 5W30 and 10W30 motor oil? 5w30 and 10w30 are two of the most common motor oils. It means the number after W must be 30. The numbers are just a viscosity rating. As briefly answered in the intro paragraphs above, the simple answer is YES. The recommended motor oil for Nissan vehicles is 5w30 and 10w30. Mobil 1 0W-30 Advanced Fuel Economy meets or exceeds many new car warranty requirements where SAE 0W-30, 5W-30 or 10W-30 oil is recommended. Q. So if you’re a little hesitant about the. 5 gt really doesn't change it much as you can check in the shell viscosity mixer as its only changing it by 1/5 anyway. The owner’s manual for your lawn mower lists the mixing ratio of gas to oil. They can’t be mixed during low temperatures. Yes, you can mix them. Pennzoil Platinum is a thin 30 or Valvoline Advanced also in 5w-30. Moreover, mixing oils of different viscosity ratings can affect the. So, it’s not suitable if you mixed 10w30 oil with 5w30. Mixing one quart out of six doesn't seem like enough to degrade cold flow to take a 0W to a 5W. It said on the bottles that the synthetic and non-synthetic oils are. In your owner’s manual, the best and. mix 10w 30 with 5w 30 ? The owners manuals for a couple vehicles I own describes on the little chart the temperature ranges with which either 5w 30 motor oil or 10w 30 can/should be used. Can You Mix 10W30 And 10W40 Motor Oil? You should avoid mixing 10W30 and 10W40 motor oil whenever possible. However, doing so is not ideal if you want to reap the benefits of what the motor oil brand intends. 5w30 is a multi-grade oil, on the other hand, sae30 is a monograde oil. 5 qts M1 15W50 plus 8 oz VSOT, the spec oil is M1 0W40 but my engine is most quiet with thinner oil. Most oils will mix perfectly, provided they have a similar synthetic. The recommended motor oil for Nissan vehicles is 5w30 and 10w30. Which oil is better 5w30 or 10w30? 5w30 is less viscous than 10w30. 6,881. Actually, a stack of 10w30 oils including a 5w30 HDEO on the approved CES 20086 list. When looking for SAE 30 oil replacements, you should ensure that the equivalent has the same flow rate as SAE 30 at a normal operating temperature. That said, you can mix 10w30 and 5w-30, but it’s. Using 5w40 oil is beneficial to diesel engines. Temperature Range. Standing in the middle of this comparison, 5W30 has a higher viscosity than 0W30 but. But generally, it’s best not to make a habit of blending different viscosity motor oils. Reads 70. It is much better if the two oils are. If your motor oil will be in the engine during winter, use 5w30 motor oil. Note: You can also read Can I Mix 10w30 With 5w30. The 5W-30's are in the 10's. Takedown request|View complete answer on jiffylube. If you search online about mixing oils, you will get a lot of people telling you it is okay. Meaning at high temperatures it is also rated at 30, but at low temperatures, it has a rating of 5. It will not damage your. If you put together these oils, it will boost up oil pressure when cornering at high revs. We recommend you take a look at your. Please refer to your individual vehicle owner's manual for proper viscosity grade and specification of oil to use. However, you need to know the right way to do this. First, mixing motor oil grades can create an oil pressure decrease as the engine revs higher. The RX350 uses the 2GR-FE engine (the 3. The 15w40 motor oil can be used in off-highway diesel equipment, farm. But you know which oil type will work better. This means that this motor oil is less dangerous when below freezing. of oil to one gal. So a lot of drivers are already doing it. You can mix 5W30 and 5W20. Before you rush out to buy two different types to mix, we’re going to explain when doing this is a good idea and when it’s best avoided. The answer is yes.