Can I mix 100% synthetic oils. I mean i did a full pennzoil syn oil change but now i want to do a mobile 1 syn oil change, is that ok?

 

There's been some debate on this question, but I don't think switching brands will affect anything. It might possibly be more of a factor if you were switching from synthetic to regular or vice versa on higher mileage engines, but that's another debatable topic in itself.

 

Thnaks, i'm assuming syn is syn but some are just a little better quality than other's.

 

No it's not debatable. Switching between brands of syn oil or switching to/from syn oil, regardless of mileage, is not a problem. Period.

 

Its completely safe to switch. You can mix and match if you want (they question would be why you would want to ) feel free to switch to what you want

 

Wow, you guys are picky with certain vocabs. The reason I said it's debatable because if you do a search on oil, oil viscosity, etc, you'll find there are many "schools" of thought about what to use, how often to change, syn or natural, brands vs brands. The list goes on.

MikePA -- you're correct...the bottom line is, it doesn't matter either way. These companies spend a lot of money in R & D; most of these meet and/or exceed very strict criterias.

 

You could switch from synthetic to dino back to synthetic with no ill effects as well.