Quote Originally Posted by Dirty Mech.
......so take it with a gain of salt this is what ive seen. its not gospel.
And I agree there, worked at Jiffy Lube, saw some strange things, including a guy putting 20-50 conventional into a 180,000 mile Acura Legend. Hearing that thing try to crank was literally one of the most painful days of my existence. I agree about the switching, it just seems like some motors have far fewer issues than others when it comes to this. I dunno, I agree with you though, and you're probably dead-on about the better flow and worn rings. Conventional Goop wouldn't act the same way Synth does. Meh, like I said for me it's all moot. Turbo, especially an Audi, is a need for Synth regardless of mileage or else you get awesome solidified chunks of baked oil in your system.