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Old 08-29-2008, 02:07 PM   #92 (permalink)
FastPlastic
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Join Date: May 2008
Location: Ames, IA
Posts: 419

98 Cherokee - '98 Jeep Cherokee
90 day: 17.18 mpg (US)

ZX7R Ninja - '99 Kawasaki ZX7R Ninja
90 day: 42.45 mpg (US)
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Ok so I took the Jeep down to Des Moines the other day (about 100miles round trip). I felt like something was holding it back a bit. The trip down doing 55mph I just barely hit 25mpg. I was looking at the setup for the mechanical fan which is located in the middle. I recently added the center grill block again. Could I be limiting the air flow to the fan enough that it's working harder then normal? I also noticed the gas mileage was slightly better a few MPH faster (more air flow?). I plan on doing some testing this weekend.

Am I crazy thinking this could be the problem?
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