Unreasonably bad mileage - JeepForum.com

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post #1 of 6 Old 02-22-2015, 10:02 PM Thread Starter
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2000 XJ Cherokee 
Join Date: Nov 2014
Location: Edmonton
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Unreasonably bad mileage

So, I've got a 2000 xj, stock height, stock tire size, nothing too special about it for now, but I've been getting like 200-250 kilometres per tank so around 120-150 miles. Besides the obvious of winter gas, bad plugs, so on so forth, any ideas why my mileage is so bad? I just recently tried sea foaming it to see if it would make any difference at all. And I'm easy on the skinny pedal, hardly ever going over like 2000-2500 rpms. Just looking for some help if anyone has ideas!

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post #2 of 6 Old 02-22-2015, 10:31 PM
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1999 XJ Cherokee 
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Binding brakes? Seizing wheel bearing?

99 XJ, 4.5" RC cheapo lift. Desperate for more tire.
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post #3 of 6 Old 02-22-2015, 10:48 PM
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Got a neighbor with a overactive siphon hose?


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post #4 of 6 Old 02-23-2015, 01:31 AM
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2000 XJ Cherokee 
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Engine temp too low? I got a (slightly) better mpg by mounting the Original Mopar t-stat instead of a no-brand 195 t-stat that kept the temp too low.
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post #5 of 6 Old 02-23-2015, 09:05 AM Thread Starter
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2000 XJ Cherokee 
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Originally Posted by chris87xj View Post
Got a neighbor with a overactive siphon hose?
we'll he is kinda sketchy hahaha
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post #6 of 6 Old 02-23-2015, 11:10 AM
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Join Date: Apr 2002
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Distance per tank has no meaning, sort of like slice per pizza. Calculate mile per gallon, or kilometers per liter. A unexplained 20-30% drop in fuel efficiency suggests faulty O2 sensors.


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