well apparently i got the raw deal with the 05 trailblazer, it was great for the first 6 months after we bought it(used) but the second it hit 80K miles mileage went down to abour 12 MPG and the transmission is about to go out. That includes all the work ive done, tuneups, flushes, blown a waterpump on a roadtrip, its just been horrible...