V8_silverstang_V8

I was driving my 2000 GT on the freeway the other day when smoke started to come from underneath my car from an oil leak that was touching the exhaust. The car only leaks oil when I'm driving, no leaks in the driveway, and only leaks a lot when I'm at high speeds on freeway. I lifted the car to try to locate the leak but i had no luck finding where the leak was coming from. I think it is getting worse. Has anyone had the same problem? Any ideas where the leak might be from? Is that dye for locating leaks a good method? Anything helps. Thanks in advance.

Xemeth

Can you see any oil/fluid under the car?

Best bet is to clean everything off with degreaser and hose it off and dry it. Then add some florescent dye to the oil and drive it in the condition where you say it leaks. Then go back under with a black light and the leak detection glasses and you should be able to see where it's coming from.

JeremyB

I would start with valve cover gaskets for sure, that would only leak when it's running like you are describing

MyGt03

^^^ +1 on the valve cover. Its directly above the exhaust manifold and would only leak while driving.