I found dropping down to 50MPH on the highway the Jeep started killing the fuel headed down mid-steep hills. Any faster than that and it has to keep the fuel going to push through the air. Probably the main reason why I managed to get 29.5MPG's on my way up to MN and back.
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Adjusted for my driving habits. 80%city/20%Highway.
20mpg city/30mpg highway or bust! Check out my mods so far
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