Ok, my friend just got done replacing my rear pinion seal, putting new fluid in the rear and tranny, and replacing the fuel filter. He told me that while he was under the car, he saw oil right after where my cutout is, but that he looked at it while on and everything, and it's not doing it. So what could have caused my car to have oil come out the exhaust, and also, about a month ago, at rpms over 5,000 every now and then, I hear a weird noise and the car starts to lose power, that's why I was told to try replacing the fuel filter, cause a friend took it for a drive and said that it's like pingin or detonating at top end and feels like it's not gettin enough fuel or something. If anyone knows what's goin on with my car, please let me know, i'm kind of scared, I hope nothing is majorly wrong!!! Thanx guys!

 

As far as the fuel issue goes u might have bad injectors or maybe a Clog in the fuel line. And for the oil thing, u might have a head gasket that is leaking, or if ur oil leaks or ur transmission leaks then it could be blow back from that! my friends camaro looked like it was leaking oil out of the exhaust but it was just blow back from the tranny leaking.