LS2 SS Trailblazer, mods?

Just on a side note what kind of econemy is realistic? I averaged 18-20 on the real time reader on the dash on the highway and anywhere from 12-16 in the city, but the average was like 13.6 when I first got in for the test drive before I reset it. Whats realistic for say crusin down the free way at 70?? Trending Topics
The Best V8 Stories One Small Block at Time



