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turbobuick-t-type · 07-16-2008, 10:43 AM

The C-1500 with the new 6-spd gets the same mileage as the old 4 spd. I thought there was supposed to be an improvment?

07-16-2008, 10:43 AM	#12 (permalink)
turbobuick-t-type Walking Join Date: May 2005 Location: Olathe,Kansas Posts: 3	Re: 2009 fuel economy The C-1500 with the new 6-spd gets the same mileage as the old 4 spd. I thought there was supposed to be an improvment?