i think maybe the rear end ratio is different, so if you dont change that you will get significantly worse gas mileage. great acceleration though.

as it is the 3.0 gets about the same mileage as the 2.6 because it carries the higher ratio.

not 100% sure but pretty sure this is the case.

tom w

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.