When I bought my used crew cab rollback truck for my antique car business a number of years ago, it came with an air deflector on the roof of the cab. Removed it to repaint the truck a couple of years later, and didn't re-install the deflector right away. There was no noticeable change in the MPG, on or off. So I echo thomasmnile's suggestion to "save your money". JMHO
__________________
2003 Ford F-350 V-10 Crew Cab 4WD Long Bed
2004 Jayco Designer Medallion 29 RLTS 5th wheel
Bill, Gayle, Teddy (Jack Russell terrier), and Honey (Beagle)
Retired at last !
Nothing is foolproof to a sufficiently talented fool.
|