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Old 07-11-2020, 10:16 AM   #31
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Join Date: Apr 2013
Location: San Francisco, CA
Posts: 2,394
Having owned a 03. V10 15 pass Stock roof w QuadVan's 4x4 TTB, 265's and 3.73's - No engine mods or tuner, light interior buildout, roof rack/basket, side ladder, stock bumpers. The lift was maybe 1.5" over stock:

13 years and 50k+ miles of driving / very little towing - I was VERY happy w that setup. Fwy mpg normally around 13.5 at 65 +/- mph.

Removed the roof rack and bars for a run to Loveland 14.9mpg over the 1200 miles at 70mph. Had CCV install their hi top, drove back and got nearly the same 14.8mpg w 80mph stretches on 80 in the mix.

So the V10 can get decent fuel mileage. Always felt like I had hardly any foot on the go pedal, it was perfectly setup for our usage.

Of course, if towing often and 5k lbs, I would think it prudent to change to the 4:10 or 4.30. But I would miss the lower rpms when running unloaded/not towing.

Beastie 3: 2002 7.3 EB Cargo: Agile TTB, CCV Mid Top, Custom Walk Through, Lots of stuff added. BlingMyRig.com
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Old 07-11-2020, 03:07 PM   #32
Join Date: Apr 2016
Location: Northern California
Posts: 51
I'm the current owner of the van 1Der mentioned. It now has a CCV high top, 285/75 KO2's on it and 3.73 gears. I just did a run from the Bay Area up to Seattle and back. I averaged 10.5mpg in the mountains and 14.5 on the flats. Overall mileage for the entire round trip was 12.7 and I wasn't shy with the gas.
I currently don't tow and I don't think I'll go to larger tires so right now I'm happy where I'm at. Perhaps later if I start towing a lot I would look at the 4.30's.

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