i changed my oil yesterday and the oil was a little merky and smelt strongly of fuel. its not running rich and my fuel milage is normal. what should i be checking? i was thinking a partially stoped injector thats giving a bad spray and thus not burning all the fuel and leaking by the rings. it doesnt burn any oil so i think the rings are in good shape but im going to do a compression test tomarow anyways, whats a good spec for that? what else should i check?