10W-30: works well at all temperatures, and helps to make cold starts easier. So we wind up with 8. 5W30 oils are easier to move in cold starts, on the other hand, 10W30 oils lubricate the engine. Go with a 0w30 or 5w30. Both have the same viscosity at higher temperatures, but 5W30 is slightly thinner than 10W30 at cold temperatures. #7. When I start to accumulate too much oil, I have actually performed a full OCI with 5 qts of this mix. They should mix well since these two oils have somewhat similar viscosities. SAE 30 is a single-grade motor oil that provides adequate lubrication to engine parts when operating under hot viscosity conditions. Originally posted by Ken2: Mobil 1 0W-30, 5W-30, and 10W-30 are basically one formulation, and 0W-40 & 15W-50 are somewhat different formulations. It’s hard to tell the difference between 5w30 and 10w30 in terms of. Thinner oils equate to lesser drag, making them more energy-efficient. #4. The oil requirements for your engine will vary depending on the temperature you operate at. The 10w30 motor oil is thinner than the 15w40 motor oil. In the truck I mix 9 qts of Delvac 15w-40 and 3 qts of Mobil 1 T&S 5w-40, so there shouldn't be a problem with the 40 weight, and thinner than an assumed 12. You have obviously been misinformed, 0w30 5w30 and 10w30 will all be the same weight at operating temperature, a 30 weight, the first number designates its cold thickness, a 0w30 will cause less wear and easier start ups even at 100F vs 5w or 10w. To conclude, you can mix 5W20 & 5W30 provided that they’re from the same brand and API. The engine is the 1999 5. However, the owner’s manual of your car determines the best oil for your car engine. In addition, the different viscosities can cause the oil to sludge, clogging up your. Add to that, being synthetic is an extra margin of safety. First, mixing. Cummins stipulates 20086 for you ride because of DPF and SCR issues. 25 qts of 5-30. 2 quarts, but no more than 4. However, it’s generally not recommended to mix motor oils with different. Say you have 10w30 in your engine. It is safe to mix 5w20 and 5w30 as long as you follow some recommendations. 5w-30 and 10w-30 are no different once operating temperature has been reached. Feb 15, 2012. I didn't notice until it was two late (Autozone didn't have the oils stocked correctly), but I just mixed two 5w20s with three 10w30s. Their chemical compounds are the same. 10W30. Can you mix 10w30 and 5w30? General speaking, mixing 10w30 vs 5w30 oils should not cause issues as both have similar viscosities at operating temperatures. But he has some 10W-30 in his garage, so he uses it to change the oil. Whether it is safe or not to mix oils of different grades depends on the engine. So, if you’re looking to save a few bucks, using 5W-30 oil in your lawn mower is perfectly acceptable. If you still got 5W30 inside the engine when you mistakenly refilled 5w20, the two oils – 5w20 and 5w30 – would mix together. So hot weather or cold weather will affect the usage of 0w20 more than the 5w30 motor oil. 10w30 is much denser than 5w30, and the thicker fuel out of the two, making it the more dense fuel. On the other hand, if you add 5w30 oil to a 10w40 engine, you’re taking a bigger risk. Here is a comparison of 5W-30 vs. The engine takes 10w30 after the rebuild. Yes, you can mix 5w30 and 10w30 oils. Therefore, they will flow in the same manner. 5w30 vs. ”. Mixed engine oil is better than low, dirty, or no oil. But it’d be best to mix oils from the same brand – the additives won’t be. Final Thought on Mixing 5w20 & 5w30. 5W-30 VS 10W-30. 5w30 is a thinner oil than 10w40. 5 puts it into the VERY thin 30 weight range. Shell Helix Ultra Fuchs Titan GT1 Motul X-Clean 8100 Triple QX Full Synthetic I. If your winter temps rarely drop below 32F, modern SAE 30 is a viable year-round oil. This only really matters depending on if you a sub. But it's not a good idea because different brands have proprietary or special additives. Yes, mixing 5W30 with 10W30 motor oil can affect your engine. They are both oils that are generally safe for use in your car. However, 10w-30 oils tend to have significantly lower volatility than 5w-30 oils. of oil to 1 gal of gas. I don't worry if the 10W30 and the 15W40 are the same brand either. Just remember: Always use the weight of oil that is recommended, and you will have a few issues. It can also be more prone to oxidation. Yes, you can mix 5W-30 and 10W-30 motor oils without causing significant issues for your engine. So while mixing different oils together is technically fine, it’s not always the best idea from a performance standpoint. This is because both 10W30 and 5W30, meet the SAE standard for viscosity at engine operating temperatures. May 19, 2009. While they are both designed to lubricate your engine, they have different viscosities, which can affect their performance. In an 07 I do no think it would be an issue at all to go 2. However, if you’re in an emergency situation where you have no other option, mixing 10W30 and. They are both multi-grade oils and are compatible with each other. Sometimes thicker oil is even recommended in higher mileage engines, although I believe the jury is still out on it. You aren't really supposed to mix your own "synthetic blends," especially across brands, so that may have a bit to do with it!. Either would work fine in your application and location. 0. 10w40 oil is a thicker oil than 5w30. You'll find most SAE 30's run 11 to 12 cSt @ 100C. A 5w oil is usable down to something like -30F anyway so the temperature is something you will never have to worry about, either. 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. 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. When it comes to choosing the right motor oil for your vehicle, you may come across different grades and types. Many have reported that they have not experienced any harm or harmful effects that the mixture did. But, even if you pour in the 10w30 without removing the old oil, nothing would damage the engine, but you’d notice a significant drop in performance as the oils try to mix and flow. The answer is yes, you can use 5W-30 oil in your lawn mower. It flows more easily at low temperatures. We recommend you take a look at your. Yes, you can mix 10W30 with 5W30. Can you mix 5W30 and 10W30 engine oils? Therefore, there is no problem in mixing 10w30 and 5w30 since one will be topping up. Mobil 1 5w-30 is 'thinner' because of the '30. Nevertheless, if you notice unusual signs after pouring 5w30, it’s advisable to drain it completely and continue with the recommended 5w20. The ow20 oil has very low viscosity if the engine is in cold weather. Although mixing 10w30 and 5w20 is possible, it is not recommended. Can I Mix 10w30 and 5w30? Most oils will mix perfectly, provided they have a similar synthetic. #2. So (30+30+25)/3 = 28. I would just use the 10w30. If the engineers spec/use obsolete technology, and refuse to license the spec requirements, then f@^& 'em. Both are the same viscosity at operating temperatures. If the temperature reaches even higher levels, the 10W30 will not be very efficient and you should go with the 15W40 oil. They will mix perfectly. 0W30 has a lower viscosity than other types and will flow more freely in extremely cold weather -22℉ (-30℃) or lower. You can even use Pennzoil or Quaker State synthetics. On the other hand, “5w30” means the oil weight is “5” in cold temps and “30” in high temps. The only difference between 0W30 and 5W30 is the viscosity rating when the oil is cold before the engine warms up. You may notice that ISO 46 can replace both 15W and 20W SAE oils. . You can’t mix the two because they aren’t of the same grade. They will mix perfectly. Run your straight 30 during the summer if you want to. The answer is yes, you can mix 5w30 engine oil with 5w40 engine oil as long as the weight of the 5w30 engine oil is greater than the weight of the 5w40 engine oil. Portions of the 8oz. This means that if you want to, then you can mix 0w20 oil to 0w30 oil. The short answer is yes, you can mix them. Basically 5W30. It is much better if the two oils are. is 11W-34. The 5w30 motor oil has a viscosity of thirty (30) in high temperatures. When you mix them, it can’t serve the engine needs in winter. This can affect the performance of the oil at extreme temperatures or under certain operating conditions. However, this doesn’t mean you can go about it without caution. Can I use 0W-30 instead of sae30? A: NO, this is NOT the same as 0W-30 oil. 5w30 oil is lower in viscosity and there is a small chance of the car not running. In a mild climate and an engine spec'd for a 30 grade in the first place it's the best choice IMO. One last point before you read on. We would like to show you a description here but the site won’t allow us. It’s best to use the oil viscosity recommended in the owner’s manual, but using a slightly thinner or thicker oil (lighter or heavier viscosity) generally poses no long-term harm. On the other hand, the 0w30 motor oil will break down faster than the 10w30 motor oil. I do the same thing and add the oils to OPE or top off my engines if needed between OCI's. This is how you can tell which engine oil is better: how thick it is. But, we recommend you not mix or blend 10w30 and 10w40. There are some minor. Besides, according to the PSC oil viscosity comparison chart, ISO 100 is equivalent. 10w30 oil is thicker and heavier than 5w30 oil because it has a higher viscosity at low temperatures. Mixing the viscosity of oils will not have any effect on the engine. Is it possible to mix 5w30 and 30w oil? You are correct that adding 1 liter of SAE 30 to 3 liters of SAE 5w30 permanently increases the viscosity of 5w30. The answer is yes; you can mix 10w30 and 10w40 oil. Mixing 5W30 and 5W20 is perfectly safe. Can You Mix 5w20 And 5w30. 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. Apr 2, 2010. #9. #6. The concern often centers around potential engine damage, but when it comes to oils of similar viscosities, there is no need for worry. Additionally, the two oils have different additives. Louis, Mo. 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. Aug 2, 2011. Mixing different oil. i. 1). 10W30, in this context, is superior to its 10W40 counterpart in offering better fuel economy. You can mix 5W30 and 5W20. The main difference between SAE 30 and 10W30 motor oil is the viscosity. The engine will not work correctly, and if you use the mixture for a long time, the engine will be significantly damaged. Your car manufacturer’s recommendation notwithstanding, mixing 5W20 and 10W30 won’t cause any harm to your engine. It will work great in your car in Georgia year-round. #2. By industry agreement/specification, all brands of oils will work fine together. Been doing it this way for 10+ years. 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. However, to clarify, the 10w30 has a higher density than the 5w30. regular oil and advising whether mixing motor oil is okay. Oil is pretty much never what kills a small engine. In the case of lawn mowers, two-stroke engine oil is mixed with the gasoline before it goes into the tank. i do this all the time. Nissan automobiles should be lubricated with 5w30 or 10w30 synthetic motor oil. In fact, the viscosity difference between 10W30 and 5W30 is essentially neglectable. Some drivers have alleged that they poured in 10W30. Canada. Before making a decision, it is important to know the technical specifications of every oil type. It will not hurt you machine at all and this time of year it might be a little better for it, cold weather and all. 10w30 is not approved for any M5. 5 quarts; I mixed 1 qt 10W40 with 3. It is impossible to combine the two oils into a single oil. Turf-Gard™ engine oil. Engines run fine! F-fan - As far as home brews go, 5W-30 with SAE 30HD should be a very practical mix. So what will happen If you have 5W30 and 10W30 mixing together? As we can see because of the same viscosity the result might be better when mixing SAE 20 and 30 together. #4. There are three types of oil that are best to use in a lawn mower.