M 38 gasoline consumtion

Eduard · Post by **Eduard** » Mon Jan 31, 2011 10:45 am

How much is the average gasoline consumtion by M 38?

My M 38 consumed ca. 13 - 15 Liter/ 100 km alternatively (4 - 5 Gal for 60 miles).
it`s too much?

Eduard

53a1 · Post by **53a1** » Mon Jan 31, 2011 4:08 pm

That sounds about right. I think I read the A1 get around 12 mi/gal.

That's not bad considering the compression ratio and how old the design is.

Bill_F · Post by **Bill_F** » Mon Jan 31, 2011 7:03 pm

I get 17-18 mpg with my m38

vrod02 · Post by **vrod02** » Mon Jan 31, 2011 8:17 pm

Bill_F wrote:I get 17-18 mpg with my m38

I'm with that figure, on a flat bed trailer!

Post by **wesk** » Tue Feb 01, 2011 12:45 am

11 to 13 MPG is the more common performance with the M38. Higher gear sets, overdrives and larger diameter tires can improve that a couple of MPG's. A more modern fuel delivery system could also improve those numbers.

Bill_F · Post by **Bill_F** » Tue Feb 01, 2011 5:32 am

Mine is all stock. I got the mileage using the average for several large trips. Filling the tank to the same spot each time.

Post by **wesk** » Tue Feb 01, 2011 11:21 am

You are not using the odometer and the gas pump meter numbers?

Bill_F · Post by **Bill_F** » Tue Feb 01, 2011 6:02 pm

as well as a gps, and the average was taken from many trips, always filling the tank to the same spot.

maeserik · Post by **maeserik** » Wed Feb 02, 2011 2:31 am

It depends how long the distance is. In these wintertimes here, a short trip for about 15 miles just to warm up and load the batteries, the jeep is consuming a lot. During summer on 100 miles trips the jeep consumes not so much. Using the jeep more often will decrease the fuel consumption.

My excperience is, the more you drive the jeep the less the consumption is.

and of course the speed, about 40 mph has a good mileage, above not.

Erik

Cacti_Ken · Post by **Cacti_Ken** » Fri Feb 04, 2011 3:12 pm

wesk wrote:11 to 13 MPG is the more common performance with the M38. Higher gear sets, overdrives and larger diameter tires can improve that a couple of MPG's. A more modern fuel delivery system could also improve those numbers.

What is a more modern fuel delivery system for this model vehicle?

Post by **wesk** » Sat Feb 05, 2011 1:35 am

A throttle body injector and a brain box. But that's a lot of work and a lot of money for the prize.