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Old 12-22-2010, 01:06 PM   #254 (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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My mileage is hand calculated after each tank. The onboard display isn't terribly accurate most of the time. And I agree, they're very solid engines. My best tank was 21.3 mpg, pretty much all highway. A little bit of drafting, but mostly just locked the cruise to 60 in the light, rolling hills. Unfortunately, a brick isn't too conducive to mpg, especially not with the V8. My mom's 99 with the I6 does better. Running highway at 60mph, 21 - 23 mpg is normal, depending on terrain. I've seen 24 - 25 in it once, IIRC.

The 6.8 second 0-60 is certainly nice for short highway on-ramps, or putting it where I want/need to be in a pack of traffic.
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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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