as a sidelight to the gas milage essay above, my son asked if the computer on his '06 GTO would be a good thing for calc'g true gas milage.
his GTO's computer can provide real at the moment milage, as well as milage for a tankful (its 5.7 chevy motor with 3.23axle .69 od can provide 23-24 mpg on the flat long I-30 ft. worth to memphis runs (light car with small frontal area-with a loafing motor).
An interesting challange should be : fillup, set computer, drive a good distance and compare computer's milage vs. gas milage done by manual fillup/pencil style (odometer divided by gas pump) since the computer does know how much fuel was consumed it would be the standard by which the "fillup error" could be judged. I'm gonna get him to try that- it should reinforce earlier statements.
