given that my piston rings and/or my valve seals are shot i smell it bad due to a cracked exhaust manifold, but before all these things happened i never had a problem like this. i mean it still burned oil slightly when i would go for a "pleasure" drives on the curvy roads i live on, but i never had a serious issue of smelling it. so somewhere along the line something is wrong it just may not be too serious. so unless it's some serious burning issues/leak it should be ok.