'72 CJ5 gas mileage?

[Thumper]

Well, I just started playing in this thing again. It's old and leaks a little oil from what I believe is the rear main seal(baseball size puddle over night). It's pretty sound, no smoke, oil gauge works but that's all lol. Setup is all stock minus 33's. It's a '72 CJ5 AMC 258 i6 / 4.2l AMC 258 i6 / 4.2l /3spd/Dana 20 , axles are Dana 30 /Dana 44 and what I believe is the lower gears it showed to have which were 4.27 I think, but with the 33's it's low. With the gas gauge not working what should a guesstimated mileage be? I need to guess by where I stand by the gas I put in the tank. I really need to fix the gauge but it'll be a little while.

 

[CJ]

Are you driving city or highway? I bet you would only get 10 - 12.

 

[Thumper]

City/Hwy 40-60%, hard to say. I want to enjoy this little rig this season. Haven't drove it in 8mos.

 

[ftwflh]

Mine with 3:73 and 33in tires gets in the 12 range

 

[steve1973]

My 73 with 258ci, 3 speed, 3.73 gears, 30' BFG KM2's and a weber 34/34 gets 13 all city. I still think i can get a few more mpg's out of it going to a Petronix ignitor II, high volt coil and low ohm wires. M

 

[IOPort51]

If you don't want to walk home figgure 10 untill you get a feel for it. does the odometer still work??