b76anderson

I have a trailblazer with about 47,000 miles on it. 4.1 vortec engine. I average about 17 to 19 mpg. any tips on raising that?

jeffcoslacker

Sounds about right....Maybe put a K+N panel air filter in it, you might see .5 mpg better but no miracles. It'll run stronger when towing/pulling hills.

__________________
You made three mistakes. First, you took the job. Second, you came light. A four man crew for me? F**king insulting. But the worst mistake you made...

...empty gun rack.

jeffcoslacker

Run the max reccomended air pressure stamped on the sidewall of the tire, rather than what the GM data says...

__________________
You made three mistakes. First, you took the job. Second, you came light. A four man crew for me? F**king insulting. But the worst mistake you made...

...empty gun rack.