DEF CONSUMPTION
This is a general question to anyone with a Duramax that requires DEF.How far in normal driving will the 5 gal of DEF last before the warning light appears?. Also Where are you purchasing the DEF?. I ...
Forum Discussion
davisenvy wrote:
Until one day you forget and add a little DEF to your fuel tank like another member on here did to his Powerstroke. $12,000 later and a new fuel system he's back on the road.
You can't fix stupid...
