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GMtothecore · 05-18-2009, 01:06 PM

I just drove from Austin, Tx to NW OK, and my trip's average MPG was 16.....in my 04 GMC 5.3L.....I think I'll be just fine with my SS auto (shouldn't see under 20MPG highway)

05-18-2009, 01:06 PM	#13
GMtothecore "That Guy" Drives: Camaro SS...........what else? Join Date: Apr 2009 Location: OOOOOOOklahoma where the wind comes sweepin' down the plains. Posts: 2,360	I just drove from Austin, Tx to NW OK, and my trip's average MPG was 16.....in my 04 GMC 5.3L.....I think I'll be just fine with my SS auto (shouldn't see under 20MPG highway) __________________