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4.8l Mileage Report

importkiller76

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importkiller76 Enthusiast

importkiller76

Posted
Posted

Well I just thought I'd share with you guys how impressed I am with my new truck :rollin: My last truck was an 06 Dakota with the 4.7 and I was really disappointed by the mileage that truck was getting. If I drove really nice and took it easy with no load on I could get 18-19MPG. And this long weekend I went up to the lake and was pretty impressed with the mileage my truck is getting. Even with the leveling kit (which should by all rights mess with the aerodynamics) I'm getting 21-22 with this truck. This truck is heavier than the dakota, has more power, is way bigger in body and is still getting better mileage! It feels good to be back in a GM!

ryan_hermanutz Senior Enthusiast

ryan_hermanutz

Posted
Posted

I just did a 500+ mile trip and I got 18.14 mpg with the 4.8 but I did have to go over the Cascade mountains to do it, so if it was flat it could have been better.

importkiller76 Enthusiast

importkiller76

Posted
  • Author
Posted
I just did a 500+ mile trip and I got 18.14 mpg with the 4.8 but I did have to go over the Cascade mountains to do it, so if it was flat it could have been better.

 

Lol yup I only had one hill on this drive where the cruise had to bring up the RPM's

Volucris Enthusiast

Volucris

Posted
Posted

That's really good. I usually get a just under 20. That's with a crew cab 4WD, 3.73 gearing, and a fiber glass camper shell.

 

What do you have? 2WD, 4WD?

javzh Enthusiast

javzh

Posted
Posted

how the hell you guys average those numbers? do you guys reset the mpg for each full tank or trip?

it says i only avg 14.5 mpg..... :rollin: i know i have a heavy foot but damn.......

importkiller76 Enthusiast

importkiller76

Posted
  • Author
Posted

I calculate by hand...every time. And I don't normally get those kind of numbers, but I drove as nice as I could just to see what the truck could do. I wouldn't expect to get that from everday driving

Darthmalo Enthusiast

Darthmalo

Posted
Posted
That's GREAT! I'm only averaging 13 mpg on my 4.8. :rollin:

 

 

According with the DIC I get 14.5 MPG in the city and 22 MPG on the highway. I think it is pretty good. I used to have a Dodge RAM with the HEMI engine that thing gave me 9 MPG in the city and 14 MPG on the highway. I'm very happy with my Silverado.

illMATTic Enthusiast

illMATTic

Posted
Posted

I was just about to post my MPG from the weekend trip with my 4.8. I towed the boat and had my bed loaded up with crap. On the DIC I avg'ed 15.1 for the 800 mile trip. I was so loaded up it made my truck sit level. Thats 3" lower in back!

auditech79 New Member

auditech79

Posted
Posted

Thats really good, especially for a 4X4. What are your tire pressures set at? It looks like you have aftermarket wheels so i would imagine there is well over 35 psi in each of them.

GPGuy Senior Enthusiast

GPGuy

Posted
Posted

Great to hear guys! I'm quite happy with the 5.3L AFM V8 in my truck as well!

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