How to improve H2 gas mileage?
#1
How to improve H2 gas mileage?
I have a 2008 H2, which is my childhood dream car. When I bought it, I wanted to swap it with a durmax L5P, but the price was too high and I could buy another truck with that money. I mainly use the H2 for family road trips, but the current gas mileage is around 11 mpg with 85 octane gas. I wonder if there are any recommended tunes or adjustments that I can make to get a higher mpg. I want to ask the experts here if you have any suggestions for the intake system, exhaust system, and tune that can improve the mpg of the H2. Or any recommendations for swap durmax shops in Washington state? Or where can I find a swap durmax shop in Washington state?Thanks in advance.
#2
There’s a way by Tuning the enigine professionally to get maybe 2 miles on the gallon more.
IMO, you don’t get a hummer for the gas mileage, you get one cause you love the hummer style of driving, the icon and the overall look as many hummer owners personalize their vehicle.
As my everyday drive I have a 2015 Chevy HD 2500 Diesel, deleted a bunch of stuff out of it, deleted the whole DEF system and with that the converter and replaced it with a straight pipe.
Installed a performance kit and I get on the freeway with speeds 70 to 80 miles an average of 27.4 miles on the gallon, in the city about 16 and yes I got all terrain tires on it as well.
My 2008 H2 I’m lucky I get 10 miles on the freeway but in Texas the fuel prices ain’t to bad.
Filled her up yesterday for $2.39 on the gallon.
IMO, you don’t get a hummer for the gas mileage, you get one cause you love the hummer style of driving, the icon and the overall look as many hummer owners personalize their vehicle.
As my everyday drive I have a 2015 Chevy HD 2500 Diesel, deleted a bunch of stuff out of it, deleted the whole DEF system and with that the converter and replaced it with a straight pipe.
Installed a performance kit and I get on the freeway with speeds 70 to 80 miles an average of 27.4 miles on the gallon, in the city about 16 and yes I got all terrain tires on it as well.
My 2008 H2 I’m lucky I get 10 miles on the freeway but in Texas the fuel prices ain’t to bad.
Filled her up yesterday for $2.39 on the gallon.
Last edited by BLK WLF; 02-20-2024 at 07:58 AM.
#4
There’s a way by Tuning the enigine professionally to get maybe 2 miles on the gallon more.
IMO, you don’t get a hummer for the gas mileage, you get one cause you love the hummer style of driving, the icon and the overall look as many hummer owners personalize their vehicle.
As my everyday drive I have a 2015 Chevy HD 2500 Diesel, deleted a bunch of stuff out of it, deleted the whole DEF system and with that the converter and replaced it with a straight pipe.
Installed a performance kit and I get on the freeway with speeds 70 to 80 miles an average of 27.4 miles on the gallon, in the city about 16 and yes I got all terrain tires on it as well.
My 2008 H2 I’m lucky I get 10 miles on the freeway but in Texas the fuel prices ain’t to bad.
Filled her up yesterday for $2.39 on the gallon.
IMO, you don’t get a hummer for the gas mileage, you get one cause you love the hummer style of driving, the icon and the overall look as many hummer owners personalize their vehicle.
As my everyday drive I have a 2015 Chevy HD 2500 Diesel, deleted a bunch of stuff out of it, deleted the whole DEF system and with that the converter and replaced it with a straight pipe.
Installed a performance kit and I get on the freeway with speeds 70 to 80 miles an average of 27.4 miles on the gallon, in the city about 16 and yes I got all terrain tires on it as well.
My 2008 H2 I’m lucky I get 10 miles on the freeway but in Texas the fuel prices ain’t to bad.
Filled her up yesterday for $2.39 on the gallon.
#5
Do the math on conversions, adds, modifications etc.... Now, take the number of what you have gained for MPG & figure out how many gallons of gas it would take to have saved to pay for these modifications...... Its right up there with solar panels on your house (I have 40)- if you live to 100 you may see a savings in cost vs savings realized....
Just drive it & dont worry about it. Make more sense to buy another vehicle & park the H2 vs trying to save with the H2......
Just drive it & dont worry about it. Make more sense to buy another vehicle & park the H2 vs trying to save with the H2......
#6
Do the math on conversions, adds, modifications etc.... Now, take the number of what you have gained for MPG & figure out how many gallons of gas it would take to have saved to pay for these modifications...... Its right up there with solar panels on your house (I have 40)- if you live to 100 you may see a savings in cost vs savings realized....
Just drive it & dont worry about it. Make more sense to buy another vehicle & park the H2 vs trying to save with the H2......
Just drive it & dont worry about it. Make more sense to buy another vehicle & park the H2 vs trying to save with the H2......
#7
#8
why do you think the world hates the H2... they are gas guzzling pigs.... if they where ment to be efficent they would have came efficent from the factory. the H2 design was offroad capabilities first fuel economy last. it's lineage was the hmmvve that was intended for military use. the military does not care about fuel economy as we tax payers fill there fule tanks.
#10
The biggest thing I've found is to change your driving style. I get about 9 with my driving style, but I have found that really keeping my foot out of it I was able to get over 14 mpg on my 35 minute drive to school which consists of 50/50 highway and city driving. Just remember that the less input you give to the vehicle both brake and gas, the more mpg you will get, and the h2 is most efficient at around 55-60 mph. Any above that and you quickly begin to drink gas.