View Single Post
Old 09-05-2016, 03:26 AM   #17 (permalink)
MobilOne
Master EcoModder
 
Join Date: Jan 2015
Location: Atlanta area
Posts: 410
Thanks: 966
Thanked 74 Times in 63 Posts
Are you sure that your 2004 GM vehicle doesn't do DFCO? The way to tell is if you have a mpg gauge, it will say 99.9 mpg when you coast. Otherwise, I don't know how you would know.
  Reply With Quote