If you mix 5w20 and 5w30 engine oils, you won’t be getting the full benefits of either oil. So 10W-30 oil has less viscosity when cold and hot than does 20W-50. I have blended Valvoline VR1 10w30 and 20w50 before, and it has worked OK, but I never tried a true. than the Mobil 1 5w30 (11. For example, if you usually use 5W-30 oil in your car, but you’re low on 5W-30, all you have is 10W-30. Which Oil Is Best For My Car SAE30 Or 5w30 Or 10W30? If you owned an old car then using a single-grade engines oil such as SAE30, 40 or any other would. The 2001 Silverado owners manual says to run the 5w30 ("preferred"), 0w30, or 10w30, and not to use anything else like 20w50. Sometimes I do wonder about mixing a 0w-40 or a 5w-40 with an ILSAC grade. And the number or viscosity grades say it all. On the other hand, if you add 5w30 oil to a 10w40 engine, you’re taking a bigger risk. 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. . In the long run, a mixture of 5W20 and 5W30 engine oil can restrict oil movement, make the engine hotter, increase moving parts friction and reduce overall fuel economy. What's strange is that 5W40 is recommended instead of 5W30 or 0W30. Yes, mixing 5W30 with 10W30 motor oil can affect your engine. 7L Sebring just got done with a 10w30 OCI - the only time we experience engine start trouble was at 10 degrees Fahrenheit right at the end of the oil's life. Midwest, Illinois. Choosing the right engine oil for your vehicle is. 5 and and 2. Can I mix in 5w-30 oil with 10w-30 oil?The add packs are pretty much identical, the base oil and VI content would be the biggest difference. Dec 9, 2009. There is no need to mix two Mobil 1 viscosity grades when one will do; however, we see no problem mixing different SAE grades of Mobil 1 Tri-Synthetic series motor oils. 126. If the oil will be in the engine during winter and you live in a place where. It requires a combination and mixture of regular oil and unleaded gas with a ratio of 16:1 gas to oil for the first month or first 500Km of riding, and 20:1 once the engine has been broken in. You can buy 30 or 40 weight oil, and you can also get multiple viscosity oil such as 10W-30 or 10W-40. 10w-30 and beyond are still labeled conventional. Or, since it is the same oil more or less, make a bled, as mixing should be OK. But generally, it’s best not to make a habit of blending different viscosity motor oils. Florida. Don't mix oil, just use the recommended 5W20. #2. Joined May 27, 2002. The choice between 5W-30 and 10W-30 depends on the specific needs of your engine and the driving conditions you encounter. #3. Today, I personally don't see the point in a passenger car. The engine oil will flow slower than 5w30 when it is cold. Cons: I only see ( " 5 "w -30 ) available at my local auto shop nowadays, never the 10w. Can I mix 5W30 and 10W30 oil? Yes, you can mix 5W30 and 10W30 oil, but it’s not recommended. A 10w-30 should have a 10w-30 viscosity whether it's conventional, synthetic, or blended. German Castrol, aka Castrol Syntec 0W30 is almost a 40 weight at operating temps. So whatever percentage of SAE 30 added is going to jack up the average above even what the 10W. Feb 2, 2006. 0w20 or 10w30 motor oil would be recommended per the owner’s manual of a 2020 Chevy. Without the right oil additives, you can wear the lobes off the camshaft. Both oils are suitable for regular use in most day-to-day driving situations and vehicles, but let’s look at the pros and cons of each type. Adding 10W30 to your current mix is safe and will not cause your engine to run any worse. The 5W-30's are in the 10's. In a 5w30 engine, you can add 10w40 oil without seeing any major negative impact. You are not allowed to mix 5w30 with sae30 because both engine oil has different viscosity grading. Even if you mix the synthetic and conventional blends of these two oils. At $3. It can retain its standard viscosity at -16 to 30 degrees Celsius at the temperature ranges. It’s pretty much okay to mix. New Jersey. Explanation of Motor Oil Grades of 5W20 and 10W30. It’s not necessarily ideal, but doing so won’t cause harm to your engine. 1 post · Joined 2017. They have said that there are no differences in terms of their. ; Climate and engine – Some conditions are more suitable for mixed oils. As a result, you have the option of mixing the two oils. Both are the same viscosity at operating temperatures. Feb 14, 2017. 5%. Will you like something which won’t be helpful for you at all? Well, that’s what mixing 5w30 with 10w30 seems like. i do this all the time. If you add 5W20 to 5W30, the result is an intermediate viscosity, which may not flow easily as the original oil. They can mix easily, which can help the engine run properly. 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. Shell Rotella meets or exceeds current CK-4 and other standards. Can I mix 5W-30 and 10W-30 in my mower? (both fully synthetic) Thanks Dan Upvote #2 04-21-14, 03:14 PM Norm201. Most cars that recommend 0W-20 or 5W-20 do so for fuel economy reasons and can use 5W-30 with no ill effects. 8 degrees Celsius). The hot viscosity, the 30 grade, remains unchanged when mixed. 5W-30 is going to have the same viscosity as 10W-30 when the oil is hot. 5 Litre 2GR-FE V6 Engine. There is no danger mixing synthetic and conventional motor oil. The protection offered by 10w30. Can I use 0W-30 instead of sae30? A: NO, this is NOT the same as 0W-30 oil. 10w30 – NOACK volatility rating that clocks in at 7%. Now, let’s address the question of whether you can mix 5w30 and 10w30 oils. Plus, both of them have the same viscosity at temperatures. Of course you can. With Shell Rotella T5 10W-30 synthetic blend, you get the strong wear protection of a 15W-40 with the added benefit of fuel savings. It is possible to combine 5W-30 and 10W-30 engine oil, but it isn’t necessarily the best option. This means that if you want to, then you can mix 0w20 oil to 0w30 oil. 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. Yes, you can mix 10w40 to 5w30 if they are on the same brand. 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. I would be the slightest bit concened about mixing two different brands of oil, only the very slightest bit concerned, but mixing two viscocities of Mobil 1 are not an issue. In layman terms, your engine will be able to handle higher. The recommended motor oil for Nissan vehicles is 5w30 and 10w30. This is because they essentially have the same viscosity at the same temperature, making them blend nicely together for your car. My oil mix is the same as your friends (5W20, 5W30, 10W30). I'd probably stick to Royal. Whether you’re topping your 5W30 engine with 5W20 oil or vice versa, you are definitely not triggering. 2. Remember a powerful engine like the mustang 5. Mar 22, 2012 #10The mixing of 5w-30 and 10w-30 doesn’t cause any harm, but at the same time, it is not recommended to use the mix of two oils for a longer period. Mar 12, 2013. #7. As a result, you have the option of mixing the two oils. AMSOIL 0W-30, 5W-30 and 10W-30 synthetic motor oils are ALL 30 weight oils. Mixing 10W30 and 5W30 won’t result. If you lived in Siberia, I would be a bit more concerned about it. My girl friend's 2. It is not recommended that you mix 5W-30 and 10W-30 oil, given that they are formulated to be more effective at different temperatures. Feb 20, 2003. This is because both oils have the same API classification (in this case, SN). Before making a decision, it is important to know the technical specifications of every oil type. If the engineers spec/use obsolete technology, and refuse to license the spec requirements, then f@^& 'em. Frankenstein by saving a 5 qt oil jug so you can mix them in the celler (or attic) on a dark and stormy night. These two oils have contrasting viscosities and are designed for completely different types of use. Now let’s break it down in order. The hot viscosity (100 degrees C) for the 0W20 is between 5. More. Makes sense but on my Lexus they said a similar thing about 5w30 and 10w30 when there was no synthetic requirement. #3. #6. This ^. 13,663. 7 Liter , Mobil1 Synthetic SS 5W-30. To conclude, you can mix 5W20 & 5W30 provided that they’re from the same brand and API. But 10W oil is thicker or has higher viscosity when cool. ARB1977. This makes it better at protecting your engine from wear. 15w40 is supposed to be thicker compared to 10w30. It will work great in your car in Georgia year-round. 5W30 is ideal for winter use, while 10W30 is slightly thicker and better suited for warmer weather conditions. The days of lubricants of the same application, type, and class fighting with each other are within reason, history. While 15w40 oil can cause engine failure when mixed with 10w30 oil, there are no serious consequences if you combine the two oils. Theoretically it is not advisable to blend oils. That's the point of viscosity. Winter-grade oil stays thin even as temperatures drop, which means it will flow straight to the engine at. At operating temperatures, both oils will have the same viscosity (30) and will flow and protect identically. As the viscosity of these two oils is very close, they will mix properly. There are car drivers who have been mixing 20w50 oil to 5w30 oil and using it in their vehicles. Mixing 10W30 and 10W40 Motor Oils. They are both high-quality, synthetic oil that provides excellent protection for your engine. It is much better if the two oils are. So, 5w30 and 10w30 oil can be mixed without causing any harm, so you can do so. Still, 10w30 can be used in a snowblower instead of the 5w30 oil. Sort by Oldest first. 10w30 oil type covers a significantly smaller range of temperature. Well, here’s the deal, you can use a 5w30 in both hot and cold ambiance, but a 10w30 is more suitable for hot weather. All engine oils have a certain temperature range, across which they provide the best performance. Many have reported that they have not experienced any harm or harmful effects that the mixture did. Some drivers have alleged that they poured in 10W30. It can be used in place of SAE 30 in compatible engines as it provides the same SAE. valvoline or pennzoil high mileage should do fine and maybe stop the oil seepage and oil burning or for sure slow it down. Location. If I were in Vegas or some other location with hot summers, I'd run 10W30 for the added protection during the summer. 10W30 and 10W40 Defined. So my question can I grab 2 new quarts of 5w30 and mix it with my new unused 10w30 of same brand/manufacturer? P. Generally speaking, you can use 10W30 instead of 5W30. As well as straight weights, you can mix multiple grades of lubricant as well, such as SAE 10W30 and SAE. But 10w30 is heavier; therefore, you should avoid using it in winter. However, the coolant in the oil definitly needs to be addressed. Mixing will not change the behavior of the waxes in the 10WXX oil. Given that a 0w-40 or a 5w-40 likely has ACEA ratings, and that those ACEA ratings aren't going to be A1/B1 A5/B5, I wonder about mixing them with an ILSAC lube. If you want to come up with your own oil mixture, just check the oil number of the two oils. This article is a must-read for those who want to fully comprehend the implications of switching between these two oil types. Hearing just a slight knocking on start up till it warms up. Regular 10w30 oil can be used and mixed with the gas, or 2 stroke oil. What I didn't know, is that there is a "cam phaser" in the 5. 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 navigationI use 10w30 year round for all my OPE needs. 5w30:. So, due to viscosity, 5w20 is a thinner oil during operating temperatures, whereas 5w30 is thicker during. They are backwards compatible. Avoid spilling during mixing the oil as it can make a burning scent. If you are going to move up in weight/viscosity. However, the resulting viscosity might not be consistent throughout, leading to unpredictable performance. Today’s multiple viscosity oils work with a wide range of ambient temperatures. Mixing 5W-30 and 5W-20: The Verdict. 7L HEMI which relates to valve timing. They have similar ingredients other than the viscosity level. #4. After it is out of warranty it's your call. Aug 2, 2011. Can I Mix The Engine Oils 10W-30 And 5W-30? When two oil kinds have a similar synthetic and viscosity, like 10W-30 and 5W-30, you can mix them. This motor oil is low in viscosity.