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7.3 Diesels

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What mpg are y'all getting out of your 98-03 7.3's? (without a load)

Thanks

I just got mine. First tank: 17. Second tank: 16. Thats with winter fuel, should improve with regular fuel.

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I got 15 average (city & hwy). Down to 7 towing 25-ft Toy Hauler

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My friends 2000 F250 gets about 20mpg, he does have a chip and that is all.

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My 01, unloaded on freeway trips gets 18-20 mpg

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14mpg

02 SuperCrew 7.3 Automatic - no mods

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2002 F350 Crew Cab long bed 6 speed w/ MBRP exhaust, AIS air intake and Edge Attitude w/ Juice monitor and I get about 17-20 mpg empty and 10-15 loaded with camper and trailer.

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01 Excursion 7.3L (Suspected set up for Ambulance).

15 average.

Best 18mpg (flat freeway at 65mph).

7-9 Towing 25-ft Hauler (up to 10K lbs usually mtn driving).

Best towing 11 mpg (flat freeway at 55mph)

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In my 02 Excursion, I average 18-21 highway driving 65mph-70mph using the cruise control.

When I tow our 30ft toy hauler loaded (around 10k lbs) I get 12 - 14 mpg.

I run stock size tires inflated to 60psi and have a SuperChip on the 1st (lowest) setting.

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03 F-250 crew cab 7.3 stock

14.5mpg or so says the truck computer.

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99 F250 work truck with 191,000, 3.73 gears, auto trans, 235/85/16? gets 15 mpg everyday, on my sales route. Drops to 10 mpg with 13,000# fifth wheel.

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2002 E350 extended cargo van, 20.3 average at 68 mph. 17.5 at 75 mph. As soon as the RPM crosses over 2k the mileage drops considerably.

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After viewing some of the other numbers in this post, I decided to calculate by hand....it appears the computer is a little optimistic @ 21 mpg.....but even calculating by hand, I get 18-19mpg highway, and 12-13 when towing.

Some of you guys might want to check your air filters and tire preassure.

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somewhat "older" data point: 96 F250 5-speed, 2wd

21 mpg highway (under 2000 rpm / 65mph) towing three bikes on a small trailer.

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