Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - New Lower air dam for 2007 Jeep Grand Cherokee

EcoVan · 07-06-2022, 10:22 PM

And I seem to be getting at least a solid 25mpg and hitting 26 for extended stretches, probably due to some light tail winds.
So far the gains have been:

Closing off the air leaks around the radiator: around .3 mpg
New O2 sensors: about 2.5 mpg highway and definite improvement in city
Lower air dam ( about 2 inches): About 1 to 1.5 mpg highway.

Next up front bellypan and may some tire spats.

07-06-2022, 10:22 PM	#7 (permalink)
EcoVan EcoModding Lurker Join Date: Dec 2020 Location: Illinois Posts: 35 Thanks: 0 Thanked 30 Times in 19 Posts	Did some testing tonight... And I seem to be getting at least a solid 25mpg and hitting 26 for extended stretches, probably due to some light tail winds. So far the gains have been: Closing off the air leaks around the radiator: around .3 mpg New O2 sensors: about 2.5 mpg highway and definite improvement in city Lower air dam ( about 2 inches): About 1 to 1.5 mpg highway. Next up front bellypan and may some tire spats.