I put a cap on the pick up and I think I got a small improvement in mpg's.
I don't keep accurate figures. Has anyone noticed a measurable change?
Second cup of coffee and time to let the mind wander,
2010 Jayco Feather Sport 22'6" DrawTite,12,000 lbs.
2011 Ford F-150 XLT SCab 4x4 Tow Package
"If you can't be smart; be stubborn.". DG.