2009 Pontiac G8 GXP Test

[99-LS1-SS]

But the tremec 6-speed in the GXP is drooling material...

It appears that most of the people that have driven the GXP agree with you.

[lsp408]

If you get a manual six speed, you give up the cylinder deactivation, thus the good mileage that the GT gets. Manufacturers do not seem to be able to offer both.

But the tremec 6-speed in the GXP is drooling material...

If you want a performance car, MPG is the last thing you should be thinking about.

BTW, My G8GT does not have DOD anymore. on interstate I get about 27 MPG

hell, my 08 impala with 3.5 V6 only get 26 MPG on interstate

[DollarBill]

If you want a performance car, MPG is the last thing you should be thinking about.

BTW, My G8GT does not have DOD anymore. on interstate I get about 27 MPG

hell, my 08 impala with 3.5 V6 only get 26 MPG on interstate

Im sure its because the impala is only a 4 spd. What did you do to remove the DOD?