Thread: I feel cheated
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Old 04-04-2011, 08:23 AM   #24 (permalink)
comptiger5000
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Join Date: Feb 2010
Location: CT, USA
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RaceJeep - '98 Jeep Grand Cherokee (ZJ) 5.9 Limited
90 day: 13.62 mpg (US)
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That sounds much better! I wouldn't expect to do much better than that, but it's still not terrible for a brick, and certainly much better than it was doing.

Chances are, the spark plugs were so worn that you were on the verge of misfiring, which would definitely cause a lack of power and lower mpgs.
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Typical driving: Back in Rochester for school, driving is 60 - 70% city
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