What's you're real world MPG (USA)

[Zimm]

No doubt!!! Buc-ee's here I come!

For what it's worth, my Gren does a touch better per tank than my G500. The Gwagon gets about 11-12mpg at best. My bigger diesel trucks do far better than both.

you sure do keep track, for having not kept track.

 

[Brock63]

I just go by the vehicle calculation as i know the speedo is about 2.5-3mph off of GPS speed. Same as my Tundray, my older 100 Series, my FJC, etc. My Tundra was 12mpg around town, 16 mpg on highway long trips. The Grenadier showing 16.9 city and 10.8 hwy if I dont accelerate like I like and keep rpm's reasonable....65mph or less... light throttle have had vehicle calculated of 21.4mpg....so guessing my ACTUAL is more like 14 city and 18 hwy. If they gave us the BMW diesel engine I would have it...but otherwise, not going to complain as is better than my Tundra TRD 4x4 I sold to buy my Pluffmud Grenny.

 

[ColoradoMike]

I get about 11.5 to 12.5

It depends on how I drive it....when we drove from Colorado to Maine we got a whopping 9.6 mpg at times. This had a ton to do with my SPEED (85 to 90 MPH) for long stretches of time with a headwind. When I drove more conservatively around 75 to 80 mph I got about 12 mpg. Aside from the speed (speed kills...MPG...LOL), I get mostly 13 to 14 MPG on good days. Avg 12 to 13 mpg when doing the typical I-25 80 mph to 85 mph w/o being fully loaded to the gills.

In every vehicle I keep my fuel receipts and diligently keep accurate records. In ours, I find that 18.6 mpg shown on the computer works out to 15 mpg or thereabouts.

I do have a 3/4 Leitner rack with Maxtrax at the front of the rack as well as the rear side molle panels. I also have some beefy White Knuckle Off Road sliders that adds a bunch of weight.

Next potential mod for me will be skid plates that will add some additional weight.

 

[Gaffer]

I just completed a round trip of roughly 1,900 miles between Philadelphia and west Tennessee, and manually calculated an average of around 15.8 mpg. For the most part it was highway, i drove at 9 mph over the posted speed limit, e.g., 79 in 70 mph zone. The trip south was mountainous on I64, through West Virginia and Eastern Kentucky stopping at Mammoth Cave: my worst tank was 14.8 mpg, on that leg. The way north was I40 to I81 via Knoxville: my best tank was on this leg, at 17 mpg. Also, very comfortable for long drives.

 

[Spuzzcat]

Same thing for me. Computer is constantly optimist by about 2 mpg. Don’t know why this is the case. I would really love to get the software engineers alone in a dark ally late at night.

You may have already discovered this information, but the difference is caused by the IG computer using Imperial Gallons for the calculation instead of US Gallons. Since the Imperial Gallon is larger, the denominator in the calculation is smaller and the MPG higher, than if you use US Gallons for the denominator.

 

[Commodore]

You may have already discovered this information, but the difference is caused by the IG computer using Imperial Gallons for the calculation instead of US Gallons. Since the Imperial Gallon is larger, the denominator in the calculation is smaller and the MPG higher, than if you use US Gallons for the denominator.

I didn’t now that but it makes sense.

 

[LabRat]

You may have already discovered this information, but the difference is caused by the IG computer using Imperial Gallons for the calculation instead of US Gallons. Since the Imperial Gallon is larger, the denominator in the calculation is smaller and the MPG higher, than if you use US Gallons for the denominator.

Well that makes sense and goes with the increase/decrease in speed not being in US miles.

 

[nuclearbeef]

Well that makes sense and goes with the increase/decrease in speed not being in US miles.

Actually, if you are referring to the cruise control; I believe it changes in kph increments.

16 clicks gets you an increase or decrease of 10 mph.
16.1 km =10.00408 statute miles

 

[LabRat]

Actually, if you are referring to the cruise control; I believe it changes in kph increments.

16 clicks gets you an increase or decrease of 10 mph.
16.1 km =10.00408 statute miles

Yes, referring to the cruise control - so they basically incorporated a bit of everything.