Coming home with a Buickload

[MadMan]

Originally Posted by Captainclock

And I'm guessing that according to what you were just saying that the engine being filled too full of oil is probably why I'm having issues with my Catalytic converter, although if that's the case I wonder why the mechanic didn't notice that... because I knew the engine was too full of oil but I didn't say anything to the mechanic about it because I thought they would of noticed that themselves, but apparently they didn't.

Well, check the oil level. It might have leaked down to where it should be, by now. And it IS a possibility that the converter is now oil-fouled. But still, if your fuel economy is down, I'm betting there is yet still another culprit.