14.5 MPG's!!!

[KONG]

I told you, Now try it with a power programmer, then you would be able to go 75 mph at 2500rpm. and you will average 16-17 mph. I tell you guys no lie....

[zmanH2]

I was doing 15.5 mpg (full tank reset) yesterday until we hit traffic. This is the highest I have seen on my rig. Now the computer is at 12.7 mpg after half a tank.

[Hummer Aficionado_VT]

I would never of thought it possible...

[Motohead]

Originally Posted by KONG

I told you, Now try it with a power programmer, then you would be able to go 75 mph at 2500rpm. and you will average 16-17 mph. I tell you guys no lie....

I think at "16-17 mph" you might get that kind of mileage...

[KONG]

oh sorry its 16-17 mpg

go granny go...

[Captain of the Titanic]

I managed 16.2 (on the dash) for 60 miles on the highway. Going EXACTLY 60 without hitting any slow downs.

30 miles of city later it was 10.8.

It's possible to get good numbers, just not for any length of time in the city. (Or driving like you're under the age of 70).

[mdoyle]

If you guys are going to talk mileage, it should only be (x) miles / (x) gallons. Looking at the instant mileage readout isn't a true indicator of total mileage, but it's a useful tool for finding the so called "sweet spot".

No, not THAT "sweet spot"

[DDWH]

I can't drive 55!!!

I can't drive 55, 60, or 65 around here very often.

[finbox]

That trip computer lies like a SOB, if you are stating your #'s from it, it's not worth posting.

[MarineHawk]

Originally Posted by PhilD

I know most of the handhelds just change shift points and pressure transmission wise. They may increase fuel efficiency in other ways, but they won't change the rpm you are pulling for a set speed.

Yes, they are magic. They will also make your tires bigger and your lift higher.

[Vettster]

Driving downhill that is.
When I turn around and have to go uphill, I get 6.


It averages out to 12.


Drive Safe,
Vettster

[Escondido]

Numbers I quoted were based on fuel used and actual mileage. No tricks from the computer, I never believed the readings on my '03. I too can't drive 55. I was just suprised by the results on a portion of my trip. I had never dissected the different impacts before but the road trip provided a great opportunity. If I could figure out how to keep it below 2k rpms while keeping up with the traffic that sure would be nice. Unfortunately 80 is just keeping up on I-10.

[obzidian]

anyone ever hear of a gearvendor. i know its something noone might even consider, however, its a cool transfer-case unit that splits your gears.

For example, your traveling 65mph around 2k in 4th/od gear with is about a .63 gear ratio, without the final. This is with te gearvender disengaged.

With the gearvendor engaged, you split the SAME gear and end up aroud and est. 1300-1500rpm, still doing 65mph. Just like a regulr 3rd to 4t/od gear change.

Now, im not sure if they have tried to implement one in an H2 and it is costly, around 2k, but you not only get an improvement in gas mileage, but you theoretically end up with 8 foward gears instead of the usual 4 gears.

[johndjmix1]

I too found that keeping it at 60 on the highway will get you 13-15 mpg.....but its dam annoying to go that slow...and...

Figure out how much you save on gas by those 2-3 mpgs. A few bucks....not even worth it. Ill pay the extra $5 at the pump to be able to drive normal.

--John