Originally Posted By: turtlevette
I'm guessing the thick oil is adding enough drag to the system to slow the idle?
Ughh, that's just painful. This engine might have been easily rebuilt (who knows). The odds of that being the case are much, much smaller now. I don't get it but hey it's your ride. Enjoy, I guess?
Per your "this being an oil site" comment, I think that most on here are looking to prolong the health of their engine or increase performance. Not sludge it up with tar in a can. Nothing wrong with biding time to a rebuild but what you're doing must be destructive.