Yeah, in conjunction with other things its part of what helped me get 31mpg out of my automatic g20 on my last roadtrip. The car ran smoother, idled better, and stopped throwing knock code. It had 120k on the clock. I would only do this on a car with lots of miles or one that never sees wot. The car felt a bit peppier. The engine blew 185 psi on 3 cylinders and 182.5 on the 4th. The engine is far from needing a rebuild.
Last edited by ImportConvert; 05-01-2011 at 01:58 AM.
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