I have a 1999 silverado 2500 with the 6.0 liter and im only getting about 9 mpg. Is this normal for this engine or is there something wrong? I have noticed there is a strong smell of unburned fuel from my exhaust but there has been no check engine lights come on from something like a bad o2 senser or anything else that is monitered by the computer. If you have any suggestions please tell.
- posted
18 years ago