Better Fuel Economy » Gmc http://www.inveighed.com Thu, 29 Jul 2010 16:19:39 +0000 http://wordpress.org/?v=2.9 en hourly 1 how much better will my duramax diesel fuel economy be with a superchip addon?http://www.inveighed.com/how-much-better-will-my-duramax-diesel-fuel-economy-be-with-a-superchip-addon/ http://www.inveighed.com/how-much-better-will-my-duramax-diesel-fuel-economy-be-with-a-superchip-addon/#comments Mon, 03 May 2010 15:14:58 +0000 admin http://www.inveighed.com/how-much-better-will-my-duramax-diesel-fuel-economy-be-with-a-superchip-addon/



what percentage of fuel economy should I expect to see for the better?

Originally posted 2008-12-21 22:43:34.

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what percentage of fuel economy should I expect to see for the better?

Originally posted 2009-04-07 07:12:30.

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