Jeremiah
02-10-2010, 07:44 PM
A new 36-gallon fuel tank extends the driving range of the 2011Silverado HD. It’s standard on long and short box versions. GM promises up to a country-crossing 680-mile range, or about 18.8 mpg.
"Heavy duty trucks aren't required to be tested for fuel economy by the EPA," Mikulec said. "But [for the single rear-wheel] truck, we've measured around 15 mpg in the city and about 24.5 mpg on the highway. We have the numbers to substantiate it, but we don't have to put it on the [window] label. There are some limited cases where at 55 mph at a steady state going around a track, we can get over 30 mpg."
...
southtexasidi
02-10-2010, 09:59 PM
dad gum, thats perdy darn good.
BombDocDiesel
02-10-2010, 11:00 PM
Sounds good.
If we drove 55 this would be incredible. My mileage with my LMM is well over 20 for the stretch in OK where I have to drive under 60. It drops abruptly once I get back 75 or so.
merlin5577
02-11-2010, 12:01 AM
Where did you get that information?
30 doesnt sound unreasonable. I have personally experienced 23MPG in my truck before.
BigDaddyDiesel
02-11-2010, 01:30 AM
Good Lord !!!!!!!!! I have to put one foot out the door and push like a skate board to coax 16-17 out of mine. LOLMy truck must have been made on a moday or friday because its always been poor on milage. :thumbdown
BombDocDiesel
02-11-2010, 02:23 AM
Once you get rid of the DPF yours will get better. Mine sure did.
BriteWhiteRam
02-11-2010, 05:03 AM
well whats my problem?? cat and muffler are gone and im still only able to get 18mpg max on the highway... like 13mpg in the city.... WTF
BombDocDiesel
02-11-2010, 05:17 PM
That would be your heavy foot Aaron! I have the same problem most of the time.
fordt
02-11-2010, 05:26 PM
My problem is no a heavy foot, as much as a heavy truck! LOL
That mileage is great for the new trucks, I hope it is realized in the real world when they start hitting consumers driveways.
Rcannon
02-11-2010, 05:27 PM
Sounds good.
If we drove 55 this would be incredible. My mileage with my LMM is well over 20 for the stretch in OK where I have to drive under 60. It drops abruptly once I get back 75 or so.
I get similar numbers.
merlin5577
02-12-2010, 12:24 AM
well whats my problem?? cat and muffler are gone and im still only able to get 18mpg max on the highway... like 13mpg in the city.... WTF
Its that right foot of yours attempting to get the throttle pedal to mate with the floor! :haha
BriteWhiteRam
02-12-2010, 01:41 AM
not so much mate with the floor but maybe go through to the other side of the firewall.. LOL i cant help it, when you've got 360hp or near 300rwhp on tap it just gets the better of you :haha