My favorite is all the yokels who drive around with their tailgates down, then leave the truck idling when they go into the quicky mart.
I have found that trying to save money on gas makes people bad at math.
Well, I think this exhaust system/programmer/turbolater is going to save me some gas money....
Exhaust system = $500.00
Mpg before/after = 14/15
Gas = $4.00 per gallon
Cost per mile before .29 cents
Cost per mile after .26
Difference per mile .03
Miles to drive to *break even* on gas saving purchase...16,666
Or, I"m going to buy a harley to ride around to save on gas money....