7.3 Godzilla gas Super Duty towing!

2024 Super Duty 7.3 Godzilla

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[mileshiles]

My truck has been great so far as well. I have the 4.30 in mine I probably lose gas mileage because of that. We didn't buy it for gas mileage we bought it for what it does. Great video

[dupreewhite]

Good video! I’ve got a 2023 F250 CCSB STX FX4 7.3L 3.73 gears. I tow a 8, 500# Grand Design TT all through the hills of TN and surrounding states. The truck is a beast. Just returned last night from a 1, 200 mile trip down to Grayton Beach State Park in FL. It was a great trip. I installed Timbrens last year and have been very happy with them. There is still play in them when traveling down the road. They don’t totally bottom out the truck. Next add on is an air horn. Lol

[isgod]

Just pulled my 18.3k tiny home from DFW to Myrtle Beach, 6 mpg hurts but it did it fine. Never overheated the transmission or burned any oil on the 1300 mile trip. Exhaust brake is about the only thing that really miss out on. Regular Cab dually with 7k payload (rig is gooseneck at 5k).

[KrisKirkpatrick]

I have a 2021 XLT 7.3 Supercrew long bed with 4.30 gears. I put on air bags to help with the squat, that seemed to really help when pulling our GD momentum 353G with the reese gooseneck @ around 12-13k lbs, no more having people flash their lights at me. I recently put on a ranchhand front bumper so that probably would also help with squat.

[adamharriger]

Have a new 23 F250 XLT Tremor with the 7.3. I’ve been shocked at how effortlessly it tows so far. We tow a 7, 000 lb travel trailer, so definitely a lighter load, but have pulled it through as much of mountains as we have here in the northeast without issue. We travel with 5 people and a 100lb dog in the truck along with gear, so even though the trailer is on the light side the 3/4 ton was a must. With the 4.30 gears and big tires I’m getting 13mpg average empty and 9mpg towing- and I tow at 70mph. While the unloaded fuel economy suffers, I’m getting around 1mpg better towing than I did towing the same trailer with my 21 F150 3.5 ecoboost. As you mentioned I’ve also never seen anything above 4000 rpm and really only exceed 3000 on long steep grades. I was honestly worried coming from the ecoboost that I would see high rpms and have the engine roaring all the time with the big v8, as that was the case in a previous gas hd I owned. Not at all the case with the godzilla, which sits nicely at 1800 rpm most of the time. I’m not sure if changes were made in 23 that affect ride quality but mine rides fantastic even unloaded- absolutely love the truck!

[highball]

You would definitely be better served with the additional overload spring on the 350 with that tongue weight. Good vid.

[PapawB]

very happy with our ‘21 F350 SRW Lariat CC LB FX4 7.3L Zilla w/ 3:73 diff; about 27k miles, primarily for towing 5th wheel, 12k x 36’ . Love the 48gal tank that’s std with the Long bed, fewer refueling stops. Have traversed the Rockies, no complaints; engine has plenty of power to spare. Towing a 5th wheel is like pulling a billboard WITH a parachute . . . windy /crosswind conditions aren’t fun ! Thanks for your video, and your perspective.

[OkieProductions]

i really like my 22 f350 srw 7.3. I put timbrens on because i put my goldwing motorcycle in the bed, then hook up my travel trailer. It really does get the job done. only thing i dont like is driving around empty. The 10 speed shifts to early, so every time you come up to a tiny hill its shifting like a mad man looking for the right gear. But in tow mode with a load its just right.

[johnshuler]

Good review. I believe that as long as you stay in Florida, where it's relatively flat, you'll be all right. I've found that the mountains test you're really towing capacity!

[darren]

Great video! I have the same truck but as a 350 srw and the 4.30s towing around 14k fifth wheel. It is doing good for us, even to Smoky Mountains last winter. You have a nice set up, enjoy!

[dalemarshall]

My son's 2021 F250 with 7.3 is bumper pulling a 15, 000 lb. dump trailer. pulls good on the hills and coming down from rock quarry is 7% grade and transmission and brakes hold well. Does squat so needs air bags.

[krisbeaver]

I've got a 22 F350 CCLB XLT 4WD 4:30 gears, 7.3L, 11, 900 GVWR Package, Camper Package, HD Brake package
We went with the long bed for two big reasons.. the HUGE gas tank. 48 gallons is nice except for when you have to fill it! LOL Second was the half ton (or more) of payload capacity you get compared to a standard bed. In my XLT, it's about 1100# more than the same set up in a CCSB.
My towing impressions are much like yours.. towing a 18' box trailer, the truck pulls without even realizing it's there, squat was less than 1/2". Never got over 2600 RPM's towing it, even up towards 65. Mileage over several hundred miles with it was 12.2MPG measured.
Towing our Sanibel 3702WB at 13, 800#, on a Goosebox, the truck barely ever get's over 3500 RPM's, towing up and down the rolling hills of Northern Indiana. Truck squats just over an inch. About 600 miles so far, and averaging 10.8MPG measured, not the "lie o meter".. lol Normally tow it around 55-60mph, I'm not in a rush.

Flat out.. the engine doesn't even break a sweat pulling either trailer, the truck and suspension are tight, but loaded she's smooth. Like you, I have decided NOT to go with the Timbren's on the truck, but I am going with Sumo Springs on the Fifthwheel, just to keep it smoother with the rear kitchen. People are probably going to get on you over the gas vs. diesel debate.. sorry, but for the extra 11k in cost, I'll replace this 7.3L three times and save the money upfront, and not worry about the more expensive maintenance. One thing people say over and over is that the 7.3L doesn't get the engine brake that you get with the diesel.. and their absolutely correct. However.. if you LEARN to drive the 10 speed transmission, getting the truck to drop 4 or 5 gears to really control your descent is rather easy. Yeah, your going to buzz up to 4000 RPM.. but guess what? That's where the 7.3L's power band is at! So you listen to an engine wind out for a couple of minutes.. it's built to go way over those RPM's.

Nice video.. hope to see you out there!

[timolson]

i am possibly on my last truck, time will tell.. i have had several trucks with tall gears like you have.. experience says to get the highest numerical gears offered.. my 355 f350's were fine, but they all ended up with transmission problems and lots of shifting under load. it will be fine, but.. if you can always get the deepest they offer, as that is the least stress on engine and transmission

[mikeminder]

I will pay for extra fuel as opposed to a $12K fuel system along with after treatment issues

[herb]

I tow a 8400# travel trailer with a '21 F350 XLT. 7.3L Godzilla 3.73 gears. I wanted the 3.73 & not the 3.55 or 4.30. In '21 the 3.73 was only in the F350 not a F250. The only and I mean ONLY difference in a '21 F350 & F250 is one overload leaf spring in the rear & the rear gears. It cost $1700 more for the F350 but you gain 1k # extra load cap. At the price of these new trucks I felt it was worth it for the 3.73 availability + the extra 1k load cap. I tow our rig all over the hills & mtns of the PNW and have made several 'snowbird' trips to the SW. NEVER an issue going up & down all the major passes. I feel I'll have no issues up to 12-13K towing. At that or more I may consider a diesel or 4.30 gears; but for now I can buy a lot of gas for the $10k up charge on the diesel. I average 10.3 mpg towing. Friend with diesel & like trailer is averaging ~1.5 mpg's better on the same 4k mile trip. His fuel ran $0.60 - $1 more plus DEF. I had no issues going up the same hills behind him. rarely went below 3rd gear. Like yourself; I bought it to tow, not mpg's

[atvtinker]

I have a 2020 F350 XLT CC SRW Short bed with the 7.3L and 3.73 rear end. It was literally only $1500 difference between it and the F250 with the exact same equipment. I did have to order it since none of the trucks the dealer had were the 3.73 rear end, but it only took 8 weeks to get it. And the difference in payload is huge. 4300lbs compared to 2800lbs.

[ipmcotter]

2023 F-350 SRW, Lariat, 7.3L, 3.55 gears. We are pulling a Grand Design Reflection 341 RDS; 37 Feet, 2, 000 hitch weight (GEN Y Executive Hitch), approximately 12, 500-13, 000lbs. Generally no issues towing. It handles the weight of the trailer just fine. It is gasoline so it behaves like a gasoline engine when towing up steep grades ( mostly 4% to 5% grades in East Tennessee). Averages 8 - 8.5 MPG towing the trailer; up to around 16MPG highway unladen. (per the onboard mileage computer)

[daveruggles]

Combined weight is a clue. Based on that I would believe the Godzilla engine was designed for medium loads and the diesel engine was designed for heavy loads. Pulling many 5th wheels is considered heavy and travel trailers are considered light to medium loads.

[macdaddy]

The tall gearing is numerically matched for what ever the trannies one to one gear is, usually placing the motor RPM in the sweet spot for proper cam timing and engine mapping… don’t change the gearing

[sroberds]

It still seams like it squats too much, what is the deal with these new leave springs, my 2001 250 squats an inch with a 6213 lbs bobcat on a short trailer. Truck rides pretty smooth without a load.