Honda dealer filled my car with Quaker State synthetic oil. Is it OK to top off with Mobile 1 synthetic? I did a search on this and the results were a little ambiguous so I thought I'd just post the question. Thanks.

 

Depends on your point of view. I would have thought that it would be fine to leave it as is, but I would think that most people will advise you to drain it and replace with a better quality. In terms of the cost of diong it, you are probably best doing the change IMHO.

 

man!!

You can't mix Quaker State synthetic oil with Mobile 1!! Totally different blends!

 

So what? Different blends aren't going to affect anything too much! What do you think it is going to do?

 

Too much you say???

Are you insane??

You are mixing two totally different chemical/liquid compounds!!

 

It won't affect anything

 

Mobile 1 and Quaker State do not mix at all.

 

Not being a smartass, but why? The two oils should be of the same rating. As far as my experience goes, you can mix non-synthetic with synthetic; one brand with any other brand; even different viscosities, so long as the "rating" (SF, SG, SH, whatever) is the same.

 

Yes, as long as the oils are the same "ratings", the brand doesn't matter.

 

Any oil is better then running low, thats how I look at it.