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Old 02-21-2011, 11:30 AM   #5 (permalink)
comptiger5000
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Join Date: Feb 2010
Location: CT, USA
Posts: 544

RaceJeep - '98 Jeep Grand Cherokee (ZJ) 5.9 Limited
90 day: 13.62 mpg (US)
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I'd give the 3.45 a shot and see what happens. With the low powered little 4 cylinder, 3.08s will likely lug it down too low. If it doesn't feel like it's close to lugging at times with the 3.45s, then maybe try the 3.08s.
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Call me crazy, but I actually try for mpg with this Jeep:



Typical driving: Back in Rochester for school, driving is 60 - 70% city
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