| Seeing that I am coming out of a 95 S-10 with a 4.3 that gets right around 20mpg, I was hoping to not take a huge hit in the pocket book when it came time to fill up. Diesel around my area is 30 to 40 cents more a gallon than gas, so it adds up quick!! If I can nurse the Duramax to 18 mpg or so I would be ecstatic! Realistically I am guessing it will be closer to what my Tahoe would get 15-16 mpg. Still better than my Trans Am at around 12 mpg though. Thank you all for your opinions on what helps the best in the quest for more mileage! Being that Christmas is coming up shortly, money will be spent other places...but come spring the first mods will definitely be in place. |