I have a 1995 Tacoma 6 cyl. It's not real bad, but the cab smells like oil when the engine is running. The only way I can describe it is like when you have the tappit covers off and run the engine, you can smell a burnt oil smell. Everything under the hood "looks" okay, there are no visable oil leaks and no smoking anywhere. Has anyone heard of this before? What could it be?

 

Do you have an aftermarket mechanical oil pressure gauge in the cab?

 

Nope, just what's in the dash.