Originally Posted by Quoydogs
You should be fine. Just make sire you drain it good. I talked with the Valvoline rep and he said as long as you don't dump a quart of conventional oil in a car filled with Syn. you will be just fine. Then he said even if you did a half and half mixture its not going to hurt anything. I would not suggest it but it would be fine.
Sweet... that is what will go in the MDX next