I just did a 400 mile trip with the GDE Tune. This was from Sacramento to Fresno and back so very flat land with lots of traffic. Speeds were 60-70. I am lifted with all armor and 235x85 tires (32"). The evic read 34 mpg, best ever. I haven't calculated it by hand yet cause I still have over a quarter tank left before I fill up. Power is definitely increased. I noticed that the cruise seems different, it looks like it allows more movement in MPH before it downshifts. I will know better after my next trip.

I am leaving today on a 1500 mile plus trip towing 2500lbs across Donner pass and Nevada. I will update on how it handles the hills with the load. I usually cruise 60 in cali (its the law) and I'll try 75 across Nevada.

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66K
Jeep Liberty Limited CRD Silver
Front tow hooks, rock rails
Skids, lift, 235x85 Toyo Open country A/T
Glasspack Exhaust

I am definately interested in hearing how you trip goes with the towing and the bigger tires etc.. i have one of the predator boxes and i don't notice any difference. im lucky to get 21-22 mpg per evic just normal driving....

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2016 JKU RUBICON

other mods coming soon...

Excellent. I've noticed the same. Seems to lug a little more, not trying to downshift everytime I hit 43 MPH. I love it.

What have you done for a lift that you can fit 32's??

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2005 CRD "Ol' Blue"
Red Ryder carbine-action, two hundred shot range model air rifle with a compass in the stock and this thing which tells time.
My build page- RL Komodo Rear and TJM Front Bumper, armored, lifted, JBA Steel D30, 4.10s and ARB air lockers.

In the front I have the daystar spacer, I'm going to be switching to the frankenlift soon. The 235x85's fit with trimming, and they still rub a little. I might look into a wheel spacer or go 255 70's next time around. Its not too bad, it will be interesting to see if the frankelift makes it rub more.

By the way the daystars wore out my struts in a few months, I've been running without much dampening for a couple years now. Don't do the daystar spacers.

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66K
Jeep Liberty Limited CRD Silver
Front tow hooks, rock rails
Skids, lift, 235x85 Toyo Open country A/T
Glasspack Exhaust

BCool,

Very astute observation. One of the GDE design parameters was to allow more speed variation than OEM when cruise control is engaged to improve mileage and avoid what end up seeming to be nonsensical downshifts.

DOC

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2005 KJ CRD Ltd Detroit TrueTrac Bilsteins G2 GDE "HOT" ECU GDE TCM "Tow Tune" "euro" TC SEGR Weeks Elbow New HG at 130K ARPs Clean CAT aFe Filter Magnaflow Exhaust EHM Cumminos In-Tank Lift Pump Hayden Fan Clutch Nylon Fan VH Enabled with GDE lower shutoff point Recalibrated Temp Gauge Tekonsha Prodigy Sears P-1 ZDDP