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Unread 02-11-2014, 12:52 PM   #76
Registered User
1998 XJ Cherokee 
Join Date: Feb 2014
Location: Montreal, Qc
Posts: 3
Gas milage


hello my jeep is killing me with gas consumtion 260 kn per tank... new 02 sensor and injector rail was liking...till same problem.. but when i touch the injectors, rail.. etc... then i got 350 km... Please help!

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Unread 03-11-2014, 11:20 PM   #77
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2004 WJ 
Join Date: Mar 2014
Location: pittsburgh, pa
Posts: 37
My mostly stock fipk 4.7ho gets 13-14 mixed and 18-19 hwy. I run 91-93 octane. I installed plastic to block the about 3/4 the rad on this and my truck in the winter. The quicker it gets there and the warmer the engine runs, the better the mpg.
My old 94zj 5.2 got 1-2 mpg higher mpg after I did a electric ford super coupe fan mod. Much faster warm up and less stress on the waterpump.
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faq , gas mileage , improve mpg , miles per gallon , mpg , poor gas mileage
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