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howdy all.... before i get cut down i know they like a drink ,but:D......i get 255ks a tank of gas outta the old girl..... running 33s , 4.1 gearing, xj auto....now a couple of ya have said it should be about the same as the stock 6...my old xj i got about 400ks on 33s stock gearing.......i didn't do the engine swap,, po did.. all i have done is longer arms and suspension fix....
anyways what should i be looking at to get better gas miles.........:eek:

opps shes the 5.2ltr......

thanks
wayne.........
 

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Do all the basic stuff for starters, compression, timing, then where is map voltage at under load. Also at 100 KM per hour and top gear where is the rpm at? 3 speed auto or overdrive auto? does the torque converter clutch engage?
318 is a good and realiable engine had one with over 200.00 miles in a Dodge 1/2 ton van with a camper top that got consistently 16 miles per gallon when highway driving. You should be able to get near that
 
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