Yeah I didn't know any better. I didn't know it mattered until I did some research. By then I had already done all the work...when I was in Tennessee for a visit a while back I went to a gas station and they sell that shit at the pump. The service guy told me it lubricates the engine, burns cleaner and adds more power, so I guess I always wanted try it and was unaware of the consequences. Well now we know. Live and learn, if I knew this would have helped during my previous threads I would have mentioned it, however it dawned on me when I read up on it.