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Old 10-19-2010, 10:30 PM   #300 (permalink)
rmay635703
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Join Date: Jun 2008
Location: Somewhere in WI
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Silver - '10 Chevy Cobalt XFE
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Quote:
Originally Posted by Nerys View Post
What else should I try?

you name it. if it makes sense won't blow up my car and does not cost a fortune I will try it :-)
Try MMO per the instructions and if you can find some old QX-700 or QX-500 give it a try, they always worked great on my old cars but seem to have little effect on my new stuff. MMO has been known to reverse the winter gas problem, maybe it might help your ethanol gas issue, it does on the 93 suburban.

My Subaru felt turbo charged on QX-500 (well not quite) but It revved higher than average before it petered out.