Instant MPG
I recently purchased a 2013 GMC 3500 diesel truck and on the dic it will give me average MPG and the owners manual states that instant mpg is available if so equipped. My question is is it a software...
Forum Discussion
my 08 chevy 1500 had instant, didn't have to do anything special just go to the section on the DIC, but my 09 duramax does not have it. I think it has to do with active fuel management system like someone else said above.
