518 and 4.10's

[oldestof11]

How are you guys doing with a auto OD and 4.10's? Good and bad. How are mpg's?

Thanks!

Jon

[cummins king]

well if you can keep your foot out of it you sould o pretty good, my truck though i bet i dont even get 10 miles to the gal
let me figuare it out

450kms = 281.25miles that cost me 100 buck and i only get 281.25 miles ooch

281.25 per 100 litters

100 litters = 33.3 gal
281.25 - 33.3 =
8.44miles to the gallon
did i do that right

[GO OVRIT]

Unless you've got a special tank, its probably not right. I've never pumped more than 24 gallons in one of these trucks. For your sake I hope your math is wrong, because that kind of mileage sucks.

My dually had 4.10s in it for awhile, and with basically stock tires they didn't work too well. There was a slight difference in power, but the mileage did drop. I think the 3.54s are perfect for up to about a 36" tire.

[flashgordon]

Mines not an auto but the 4:10 were no fun, and a max of 17 mpg empty.
With my GV over drive, it's a lot more fun to drive........especially on the freeway when you want to pass some one
and mileage is much better now too.

Flash.

[dpuckett]

cummins king- 1 gallon= 3.785 liters.
100/3.785= 26.4 gal
281.25/26.4=10.6mpg. Still stinks on ice, if you ask me. Worst I ever got was 12, towing bgilbert's donor rig on a trailer that pulled like a sled (literally, a 40ft g-n pulled better, and with lower EGT/ boost needed).

GOVRIT- stock tank size is 30gallons. I have put 28.5 in a few times. Light normally comes on around 24-25gal used, meaning 5-6gal left.

I had a nonIC 91 dually with 4.10s that would get 21-23 at 60mph (~2000rpm). It had a Getrag, though. Speeding up to 70 dropped me to right at 19-20. Current truck with 3.54s gets around 18hwy/ 14city.

Daniel