20+mpg?

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Feb 12, 2015 | 11:02 PM

bigdaddy0608

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Joined: Feb 2015

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20+mpg?

I've seen on diff online sites of guys getting 18mpg in town and 20+ highway with a 4x4 6speed with tuner intake and exhaust.... is there any truth to this? Has anybody gotten these numbers before?

Feb 13, 2015 | 10:11 AM

joebob3093

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Joined: Jul 2008

Posts: 2,558

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From: Powell Butte, OR

Its been done, best I ever got was 17

Feb 14, 2015 | 02:12 AM

Just-Another-Dieselguy

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Joined: Jun 2014

Posts: 541

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From: South West Pa

3.55 gearing, 35" tires, and a baby right foot and I pulled an avg 23 out of my truck a decent bit.
Also can drive it and get 12.
It can be done
But it's also not a 7.3

Feb 14, 2015 | 08:37 PM

shane772

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Joined: Sep 2012

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I've gotten 20 on highway, unloaded, but I'm auto and 2wd

Feb 17, 2015 | 10:00 AM

jimmer4dat

Diesel Fan

Joined: Jan 2015

Posts: 24

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I just bought my 7.3 its a bone stock 4x4 with an auto trans and i get 15 mph avg

Feb 25, 2015 | 07:10 PM

markanthonyhudson

Diesel Fan

Joined: Apr 2013

Posts: 42

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From: Bountiful Utah

on average. I get 15 to 16 on highway. in town i get 13 to 14. I have a auto 4x4 with intake and exhaust.

Feb 25, 2015 | 08:23 PM

gunman41mag

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Joined: May 2008

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From: MIAMI, FLORIDA

When i had a 1999 F-250 7.3 super-cab, long-bed 2WD, I was getting up to 15 mpg in the city & 18 mpg on the highway

Feb 26, 2015 | 01:39 PM

Straight Six

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Joined: Feb 2015

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Our intake/exhaust 7.3 gets 12 with a granny foot. I think the turbo is melted though. Heard of swapped fordcummins on propane that can get 25-30+ If I was a hotshoter that's what I would do.