Vaeagleav said:First welcome to the website!
Unfortunately you are getting about par MPG for a 2500 AV. It has never been known for good gas mileage. The best thing about the 8.1 is it's towing/hauling capabilities,
about the only thing you can do is decide if you need all that capacity. (If not sell it for a 1500 5.3 Av but even then don't expect much improvement in MPG.)
The AV is a 6,000- 7,000 LB vehicle with the aerodynamics of a brick so it's not an economy vehicle.
The best you can do with any AV is to drive it like an old geezer with slow starts, slow stops and avoid stop and go traffic when possible. Also use cruise control and keep speed below 70 or so. Then consider things like proper maintenance and tune-ups, tire size close to stock and properly inflated also no lifts and things to increase weight or drag in the airflow. Don't believe the advertising hype of miracle fuel/oil additives or CAI systems improving MPG too.
When gas prices go up MPG talk is all over this website and many people either sell their AV or buy an economy car or motorcycle as a daily driver to save on fuel costs.
60 PSI ! Wow that seems a little dangerous for a couple mpg.I've never tried 92 octane because it is at least 80 cents more than 87. When I drive on smooth flat land thru Ohio with the windows cracked, the tires aired up to 60 PSI for less roll resistance and the rear window out I can get it up to 17 Mpg.
I also have a straight intake CAI, because the stock one is so restrictive. If you have ever seen a stock 8.1 intake you know what I mean. If I keep it below 2200 RPM and in 4th gear it's OK but if I hit a city it drops back to 8-12.
Not at all.60 PSI ! Wow that seems a little dangerous for a couple mpg.
Not at all.
The 2500 AV calls for E rated 10-ply tires, which can be inflated to a maximum of 80 PSI.
Even the door sticker shows 80 PSI for the rear tires. LOL...
I never do that, as it makes the ride too rough. I figure that GM assumes you'll have a substantial load in the truck.
I’m fine with mpg I know if I buy a full-size Chevy with a big boy V8 that I don’t care to give her some ole gasoline not to be rude but if you care about mpg buy a Prius of a foreign car I love Gm and I’m proud they gave us the holy grail avalancheFirst welcome to the website!
Unfortunately you are getting about par MPG for a 2500 AV. It has never been known for good gas mileage. The best thing about the 8.1 is it's towing/hauling capabilities,
about the only thing you can do is decide if you need all that capacity. (If not sell it for a 1500 5.3 Av but even then don't expect much improvement in MPG.)
The AV is a 6,000- 7,000 LB vehicle with the aerodynamics of a brick so it's not an economy vehicle.
The best you can do with any AV is to drive it like an old geezer with slow starts, slow stops and avoid stop and go traffic when possible. Also use cruise control and keep speed below 70 or so. Then consider things like proper maintenance and tune-ups, tire size close to stock and properly inflated also no lifts and things to increase weight or drag in the airflow. Don't believe the advertising hype of miracle fuel/oil additives or CAI systems improving MPG too.
When gas prices go up MPG talk is all over this website and many people either sell their AV or buy an economy car or motorcycle as a daily driver to save on fuel costs.
What intake do you use?I also have a straight intake CAI, because the stock one is so restrictive. If you have ever seen a stock 8.1 intake you know what I mean
I'm in complete agreement... And that is why I have a Chevy Bolt for my daily lolI’m fine with mpg I know if I buy a full-size Chevy with a big boy V8 that I don’t care to give her some ole gasoline not to be rude but if you care about mpg buy a Prius of a foreign car I love Gm and I’m proud they gave us the holy grail avalanche
Aem Brute ForceWhat intake do you use?
He drives a Duramax now.That's a interesting statement Wickman, does he have a 2500 AV or Suburban
Yeah a few of us 2500 owners went that way including me. GMC oiler 900+ foot pounds torque and a more modern tranny make pulling a 34 foot airstream up a hill a breeze. Down side the ride, I only drove it about 2,000 miles in 3 years. But my AV is not going anywhereHe drives a Duramax now.