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Old 10-31-2010, 01:07 PM   #7 (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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As Euromodder said, city vs highway is the key. In the city, with lots of stop and go, weight will typically be bad. However, on open rural roads, or on the highway, where you can maintain a fairly constant speed (or P&G), the extra momentum can smooth things out and help. However, if you're doing P&G, it may or may not help, depending on the vehicle.
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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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