View Full Version : Silverado mpg

02-26-2008, 08:24 PM
Hey guys I have a 99 Chevy Silverado 2500 not HD with the 6.0 vortec and a 3.73 rear end. Right now I am not plowing or pulling anything and I am getting between 9 and 11mpg and this seems a little low to me but Im not really sure. Any ideas? Thanks.

02-26-2008, 08:58 PM
You probably have winter blend fuel... Mostly city driving? Short trips, engine doesn't get much time to warm up?

If yes to the above, its normal.

dave k
02-26-2008, 10:02 PM
I just checked my mileage, mostly highway and I got 17.5 mpg, Duramax, 4X4 quadcab 8' bed, hows this sound?

02-26-2008, 10:20 PM
With our 6 liters - all trucks are 02,03,05,06 gas. Winter so far with either trailer or plowing - 9 - 11. My new d-max with 1200 miles - getting around 15, winter blend fuel and alot of idle time due to 0 degree weather.

02-26-2008, 10:37 PM
i went on a 300 mile trip this past weekend all highway and got 17mpg, but when im around town and let it warm up for a few minutes and get about 11 or so. By the way this is with the 6 liter

02-26-2008, 10:41 PM
With the crap weather we have been having that sound about right for mixed driving, should be a little better for highway. We have a 99 and A 03 and thats about what I would say were getting. Are 99 never sees better than 15 and thats with A old man driving it.

02-26-2008, 10:53 PM
that is a little low. I get around 11 pulling the trailer. unloaded I get around 13-14 but I have the 4.10 rear end...I have to admit..I bought this truck right at a year ago and I disussed it EXTENSIVELY here on this site before I bought it. Everybody told me what the mileage would be and they were right...but they also told me I would be happy with the truck and I have been!!