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Old 12-12-2013, 08:32 PM   #27 (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 cRiPpLe_rOoStEr View Post
Water+meth injection decreases the incidence of that tar deposits in the manifold.
Fed law should read, GDI must be lean burn only with water injection to eliminate NOX, increase fuel economy and clean the intake.

Problem solved. No further research required.
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