My 2004 G35x is leaking oil. I though maybe it was the oil drain plug was a little loose. but I guess not. I recently took it down to the shop of an oil change but it still leaks. I havnt had time to look at it but I will this weekend. has any one else with an '04 G35x had this problem?

 

This is why i change my own oil.

Unfortunately you'll have to look and see where it is leaking from first before anyone can tell you if they have the same problem. Off the top of my head, either the filter was installed to tightly/loose or the oil plug is crossthreaded or the gasket trashed.

 

Mine leaked oil because the oil dipstick was not seated correctly and the rubber gasket that seals it to the dipstick tube was shot. This rubber gasket is on the dipstick.