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In keeping with the MPG polls in the V10 forum from 2006 that were so popular over the years, here's a towing MPG poll for the 7.3L.
This should be for towing mileage results after a few hundred miles.
In your post put the following, please.
1. Year
2. Cab configuration
3. Current mileage on the odometer
4. 2WD or 4WD
5. Rear gears
6. Tire size
7. Cap or no (if a P/U)
8. Any aftermarket accessory that has had an effect on your mileage if it is far off the forum's average. 9. Weight, size and configuration of trailer. Fifth wheel, load-leveler, etc, and how much the trailer weighs approximately.
2020 F350 SRW CC 7.3L 4X4 4.30 gears
11 MPG on 392 mile trip with a 3,200 lb Northsrar Laredo truck camper. Dual batteries and fith wheel prep.Torklift tie downs. 275 70 18 wheels with Cooper ST MAX
2020 F250 STX CCSB 3.55's, 1k miles, bone stock
Just averaged 12.7 puling my car trailer and a SE-R Spec V from Cleveland to Buffalo, cruise set @ 75.
Honestly better than my old 2013 Ecoboost F150 would get with the same gears. Anything above 65 towing with that killed mileage.
1. 2020 2. CCSB (Tremor) 3. 6050 total miles 4. 4WD 5. 4.30 6. Tire size LT285/75 R18 7. Open bed 8. Any aftermarket accessory that has had an effect on your mileage if it is far off the forum's average. 9. Weight, size and configuration of trailer. Fifth wheel, load-leveler, etc, and how much the trailer weighs approximately.
7500-10000 lb depending on how much crap we wanna bring along. 28ft travel trailer. 9-11 MPG depending on trip, mountain passes, wind etc.
F-350, CCLB, 3.73 rear end, LT275/70R18 tires, about 500-1000lbs in the bed depending on the trip, total miles 2700, with about 1300 towing. Towing ~7000 travel trailer- 8.8mpg, worst has been around 7.0 mpg and best around 9.8mpg. This is in the Pacific Northwest, mostly back and forth over the Cascades and through the Willamette Valley. It doesn’t seem to matter if I try to drive really nice or I just get in the fast lane and go.
1. 2021 2. Super Cab 8' Bed F350 3. 7000 4. 4WD 5. 4.30 6. 275/70R18 (Factory Good Years) 7. No cap 8. Ranch Hand Legend full bumper replacement, not sure that it makes much difference.
9. Towing my 10K rated, 26' bumper pull equipment trailer with my 6500# 94 F350 on it (guessing a combined weight of 8-8500)
Averaging a solid 8.5 while towing this load multiple times. Not impressed. My '89 351w 4 speed truck averaged 10 pulling the same load and makes similar power, and averages 12 unloaded, which is better than this truck. Using my brother's '94 F350 cab and chassis with a 460, we averaged 10 MPG. But at least the AC works in my '21 I guess.
2022 F350 SCSB 3.73 gears, 285/75-18 duratracs, Tremor valance, gooseneck towed my old truck across the CO mountains and across Kansas, scaled at 18,700 so 12,000lb load. Ran 60-65 in CO, ran 75-77 across Kansas. Did a couple 10k ft plus passes along the way 732 miles, 9.3 mpg.
Pulled the ~5000lb gooseneck home empty, ran 80 mph in Kansas into a moderate headwind and obviously uphill into the CO mountains, over the same passes. 9.6 mpg for the return trip.
In keeping with the MPG polls in the V10 forum from 2006 that were so popular over the years, here's a towing MPG poll for the 7.3L.
This should be for towing mileage results after a few hundred miles.
In your post put the following, please.
1. Year
2. Cab configuration
3. Current mileage on the odometer
4. 2WD or 4WD
5. Rear gears
6. Tire size
7. Cap or no (if a P/U)
8. Any aftermarket accessory that has had an effect on your mileage if it is far off the forum's average. 9. Weight, size and configuration of trailer. Fifth wheel, load-leveler, etc, and how much the trailer weighs approximately.
PLEASE KEEP IT 7.3L MPG RELATED!
2020
Crew
24,329
4wd truck, I tow in 2wd tho
Tbd
275/65/18
Not sure what this means
Tonneau cover, front hitch with 150lb of e-bikes loaded, 100lb of bike on back
6980lb loaded, 40ft, bumper tow, ecohitch e2 distribution
Last edited by Bc3tech; Jan 13, 2023 at 03:18 PM.
Reason: add tire size
1. 2021 2. Super Cab 8' Bed F350 3. 7000 4. 4WD 5. 4.30 6. 275/70R18 (Factory Good Years) 7. No cap 8. Ranch Hand Legend full bumper replacement, not sure that it makes much difference.
9. Towing my 10K rated, 26' bumper pull equipment trailer with my 6500# 94 F350 on it (guessing a combined weight of 8-8500)
Averaging a solid 8.5 while towing this load multiple times. Not impressed. My '89 351w 4 speed truck averaged 10 pulling the same load and makes similar power, and averages 12 unloaded, which is better than this truck. Using my brother's '94 F350 cab and chassis with a 460, we averaged 10 MPG. But at least the AC works in my '21 I guess.
Had a pretty long trip this weekend which offered some more data.
Drove just over 260 miles each way. With the same specs as above with just the unloaded trailer, I averaged 10 MPG. With a '92 T-Bird on the trailer, the MPG only dropped another half a point to 9.5 MPG.
Still not overly impressed with the MPG the truck gets with a load behind it, but the truck does tow through rolling hills with plenty of power to spare.
Had a pretty long trip this weekend which offered some more data.
Drove just over 260 miles each way. With the same specs as above with just the unloaded trailer, I averaged 10 MPG. With a '92 T-Bird on the trailer, the MPG only dropped another half a point to 9.5 MPG.
Still not overly impressed with the MPG the truck gets with a load behind it, but the truck does tow through rolling hills with plenty of power to spare.
I would love to know how your 351w with a 4spd gets 10mpg towing 8500lbs? My 460/zf5/4.10s gets 8mpg towing 10k lbs. I would also love to know how your 351w is making similar power to the Godzilla and isn't as effected by a load a load as an engine almost 100ci larger?
I am getting better mpg now empty and half the time towing with a 2022 7.3/4.30 DRW weighing 8800lbs than I did with a 2022 7.3/3.73 DRW 200lbs heavier every tank. Best tank ever while towing 17k lbs with 3.73s was my wife pulling my 43' Solitude from Chattanooga to Michigan on I-75 she averaged 8.5mpg hand calculated over 785 miles. I just averaged 9.1mpg over 385 miles From Northern California to Yosemite pulling my 5th wheel with 4.30s. Mostly 55mph-62mph was the fastest and turning 1700-1900rpm most of the time. If I drive that speed empty I could get 17mpg over the same type of terrain.
The 7.3 has DEVCT so how you use the skinny pedal and pay attention to the torque converter lockup when the instant mpg readout spikes pays dividends. Yours won't be the same as mine because you have taller tires. With 3.73s my DRW could shift into 10th gear at 45ish mph. Truck with 4.30s can shift into 10th at about 36mph. My truck with 3.73s had a sweet spot right about 55mph where I can get over 20mpg on flat ground. My truck with 4 30s has a sweet about 43mph up to about 60mph. From 61-74mph my mileage is basically 13-14mpg in 10th but I can get better mileage from 75-about 80mph than from 61-74mph. If I'm driving through a 35mph zone I go about 42-43mph because I can get at least 5 more mpg at 42-43mph vs 35mph because my truck will be deciding between 9th and 10th gear. My truck with 3.73s had a similar issue in 45mph zones deciding between 9th and 10th.
Towing my 5th wheel with 4.30s 45-49mph is about peak mileage where I can easily achieve over 9mpg and 55mph I can get right at 9mpg. If I try to maintain 70mph towing I get 6mpg all day. If I go 65mph I still get the same. Once I slow below 62mph I gain at least 2mpg. Getting behind a semi at a safe distance from 55-62mph also helps. Figure out where your trucks sweet spots are and change your driving habits. I'm old enough now that I dont really care about rushing everywhere but I'm not going to drive 55mph across the whole country. You'll get run over on the east coast driving 55mph on a 70 or 75mph road. I used to get 7mpg at 70mph with my 27' class c with a 460/c6/4.10 weighing over 13k lbs. I can accept 6-7mpg to move 26-27k lbs at 70mph but I do know how to achieve better mileage if I want to.
