That's to help GM meet their CAFE average fuel mileage requirements for the truck fleet. You'd be surprised how many companies use those for work vehicles.
That's to help GM meet their CAFE average fuel mileage requirements for the truck fleet. You'd be surprised how many companies use those for work vehicles.
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
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