Hello everyone!
Is it ok to combine different brands of oil, of same viscosity?
How about different brands, different viscosity?
Thanks!
Thevodd half ltr wont make any difference any oil will do at a push if your desperate but if your doing full oil changes stick to proper viscositys 15w 40 ect
You can mix brands. I do it all the time. Stick to the correct viscosities though.
Here’s my thinking in this situation.
You pull into a gas station and check your oil and see that you are a quart low. You browse their over priced oil selection and see that the don't have the same oil you use normally.
What will you do? Are you going to add that oil that’s the same viscosity or are you going to drive a quart low? Which one is going to do more damage?
Id say it’s better to have the oil in the vehicle, than to run it low. It’s not going to hurt it in the short term.
Now say you are changing the oil. Would I mix 3 quarts of Pennzoil with 2 quarts of dollar store oil? No. If you are changing your oil, use your regular oil for the whole oil change.
Hope that helps,
Have a fine day.
I do alot of work on cars on the side, mostly friends, family, neighbors, and occasionally a friend of a friend if I have the time. I usually have them supply parts and supplies and often end up with left over new fluids they don't want. I've been changing mine and my wife's oil for years with oil that was left over from jobs and it's usually a mixed bag of stuff. 2 qts of pennzoil 5w-30, half a quart of valvoline 0w-20, a quart of of castrol 10w-30 etc...Ive never had an issue and I've had a few vehicles make it to the 300,000 mi. mark. My wife's current vehicle is a 2012 VW Toureg with 150k and I've been changing the oil on it since we bought it with 30k. I occasionally send a sample in to blackstone labs for an analysis and I always get very good reports. As far as my car, it's a 2007 Audi A4 v6 230,000mi (bought with ~50,000 mi) and oil analysis reports always come back very positive for it......I think it's safe to say that mixing brands and even a small amount of viscosity mixing doesn't do any harm. The important thing is to change your oil regularly
Your engine will have a spacific oil grade that you must stick to eg 15w40 semi synthetic full synthetic ect the make of oil makes no difference as long as its the correct grade and that oil is yhe same speck as whats yhe manufacturer says to use hope this helps ivan
Do not do that. Even with same viscosity, the oils have different additives that might not be compatible. And always remember Scotty’s quote : oil is cheap but engine is expensive.
Now there are three guys saying three different things! What is definitive?
I want to mix about 0.8qt of LiquiMoly with 3.5qt of Mobil1, both full synthetic 5w-30. A friend wants to top up his 5w-20 Honda with 5w-30 oil (0.5qt)
What do you all think of these two conditions?
@toyota4life
GO and buy a quart oil can of the dame oil your friend put in the car.
@toyota4life
yes go ahead and put in the 0.7qt. It will make absolutely no difference. Once you put oil in the engine it gets all over the place. It doesn't all come back out. Does that mean you have to stick to the same brand for the rest of your life? No.
I think your friend is OK too. They are close enough and 0.5qt won't make a difference.
Now you have a better understanding why I insisted on not mixing the oils:
https://carkiller.com/scottykilmer/qa/oil-with-different-specifications-but-with-same-viscocity/
means nothing. I don't think his problem is the oil. This wasn't worth digging up 2 month old post.
No digging. Just a quick search to help out people.
Motor oil is motor oil. I doubt mixing different motor oils will cause problems. As long as it's MOTOR oil and relatively the same in viscosity, then it should be fine. Just don't mix cooking oils with motor oil lol...yes I still cannot forget about that cooking oil question we got! 😂
which one was best again... peanut oil?