Allison upgrade & MPG?? [Archive] - Diesel Place : Chevrolet and GMC Diesel Truck Forums

: Allison upgrade & MPG??


RickDLance
04-30-2005, 03:09 PM
Is anyone getting better MPG after modifying the Allison?

coyotekid
05-04-2005, 02:21 AM
I get worse mileage because I can't seem to quit romping on it!

Seriously though, I see no realistic mileage gains/losses with the Suncoast.

lakingslayer
05-04-2005, 10:47 AM
I don't see how the tranny can increase your mileage unless your are slipping a lot with the stock tanny and then get it rebuilt or enhanced. If there are mileage gains with tranny mods they probably are minimal.

Mike L.
05-04-2005, 12:02 PM
I don't see how the tranny can increase your mileage unless your are slipping a lot with the stock tanny and then get it rebuilt or enhanced. If there are mileage gains with tranny mods they probably are minimal.
:exactly: