2023 Ford F250 7.3L Gas V8 Towing Up 6% Grade With MPG: Does It Outperform the 6.8L???

[@aaammm1033]

We have been replacing about 25 diesel a month with the 7.3 in our fleet over the last two years. There are no complients yet just less failures!

[@arlenboyer-v9v]

i have 2024 f350 xlt 7.3 with 4.30 gears ordered my options included power mirrors slide out with 360 camera i really injoy this truck gave up my duramax and i dont miss it! i live in the flat lands i pull gooseneck with equipment 20k to 25k and no its not a diesel but its gets the job done and i myself dont try to pull a trailer 90 mph.

[@enz6312]

I have this same truck with a 4.30 rear end. It does great pulling a 15K 36' 5th wheel (through mountains). The truck sits in the garage for extended periods of time...I'm glad I didn't get a diesel for that reason..minimizes diesel issues based on low usage.

[@Acidrain50001]

I guess i'm confused with this... I have 7 diesels and they sit on a tender all winter 2 are over 10 years old and they run as they did new so what or how could it "get issues" sitting?If you use it to tow as the 5th wheel and not grocery getting then it's being used for what it is and i've seen a 20 year old diesel that sat crank over, a gasser would never do that. If it can have issues from sitting mine didn't get the memo.

[@charlesb4267]

@@Acidrain50001 I had read your comment and was thinking about what you said, I farm and therefore surrounded by diesel engines but ... I don't have anything new enough that requires DEF, and I live in western Canada so its cold for many months out of the year. Many pieces of equipment sit for many months in that frozen state of animation in a sense and the fact is I have very little problems in the overall picture. However those with a DPF and require DEF and so forth, being run during the winter presents lots of problems and I know farmers south of the border that are in hotter climates deal with a lot more issues of bio slime growth in fuel tanks as the hotter temperature and bio diesel blends promotes that growth and also the DEF becomes far more prone to drying out or another words crystallizing due to water evaporation out of the solution due to the hot climate. But back to the area I live, by and large its a theme of emissions problems with all so called modern diesels that are being used on a regular basis from pickups to highway tractors etc, idling in cold weather to keep warm, DEF freezing and the tank heater system craps out and so on. Basically a lot of diesels are being deleted because they are not reliable otherwise and are ruining the engine causing very early rebuilds of highway tractors etc. Before the emissions were thrown at these engines there were no major issues, now its just a ticking time bomb of when the next problem is going to happen.

[@pjbuckmaster]

@@Acidrain50001the new diesels with def are not good to sit. The def goes bad just like ethanol in gas. Then when it goes bad it destroyed your system. They have to be ran on a constant bases or it will make problems. My neighbor spent $12,000 getting his truck up and running because he left it sit for 6 months and the def ruined the truck. It is very corrosive. Now he has me drive it once a week when he is out of town.

[@slaytanic921]

@@pjbuckmasterholy cow that is terrible. I went gasser but GM this time around.

[@Acidrain50001]

@@pjbuckmaster That's just crazy I know that crap is corrosive but the past 2 winters my front loader has sat with it and i've had no issues. That being said I was told if it's old it will just burn it off faster. Now with the trucks I am guessing newer models like my 24 Doesn't it just go from the plastic tank to an injector on the 2nd half of the exhaust? I don't know much about that crap other than i'd like to delete it but can't.

[@joerapo]

It's not so much about the peak horsepower and torque numbers its more about the torque curve. I've read the 7.3 is producing 400 ft/lbs at 1500 rpm and 450 at 2000. That's as good as some of the older diesels.

[@stevelilly1243]

On this particular test it was all about peak horsepower. That thing was redlined for a while lol

[@alexsmba]

@@stevelilly1243which is fine, that’s where max power is. A diesel would be around the same speed at WOT. The redline is lower, and that’s about where the engine would sit.

[@enz6312]

4700 RPM is right in the power band for this engine.

[@matthewanderson9912]

Speed on a grade is 100% about horsepower.

[@Slythey]

It's more like 2,000-2,200 rpms for 400+ tq, which is still great. 1500rpm is only a few hundred over idle.

[@bigmurph1447]

Buying a 7.3 and installing a supercharge is still cheaper than buying a diesel

[@matthewanderson9912]

Nice video. I’m glad that you are continuing to hammer home the type of trailer you tow is just as important if not more so than weight. No main stream reviewers do that. They only concern themselves with just weight. This also proves a point I’ve always made in that horsepower is what determines how fast you go, pulling a grade, trap speed in drag racing or whatever else when you’re wanting the max mph (drag coefficient also but at highway speeds that’s irrelevant). You were cranking around 5000 rpm this entire run which is getting close to peak horsepower for the 7.3. Same thing when you tested the 6.4 Hemi. Now when you did the 6.6 L8T you fell off to under 3000 rpm and unsurprisingly lost speed. The L8T has enough (more than enough) power. The old 6 speed however just doesn’t have a gear to keep the engine wound up for these steep grades. That’s the secret to gas engines. The 10 speed has fixed that problem and it too would stay close to 5000 rpm on this grade and depending on the DA be 70 mph or so. Speaking of DA (density altitude) I think you just had your test you wanted to try proving that it matters lol. This 7.3 was pretty significantly faster mph wise as the first 7.3 you tested. Now sure the first one had 35x12.50s and that heavier tire would affect performance but it also had much worse conditions. So good test. But I’m going to keep calling you out on the “L8T is underpowered” nonsense and the density altitude thing too.

[@philjones4011]

Excellent analysis as always. Thank you for the video!

[@braydonm5485]

Great video!

[@erikswensen425]

Good review Shawn. I'll definitely be watching the next episode you have either the 7.3 or 6.8 with 4.30 gears

[@CZ-kz7ug]

Looks like their is an Ford update for the 7.3 and 6.8 cam and lifters. Says an pcm flash will raise the idle speed to increase oil pressure. So basically their pump doesnt flow enough below a certain rpm, and your going to use more fuel at idle with the rpm increase.

[@Slythey]

you're right but I doubt anyone will notice the fuel use difference though

[@marksman4004]

It does look good with your trailer on it.

[@boxmaker86]

Man big block G A S V8s sound good

[@retiredafce3373]

My 6.8 down shifts going downhill as well.

[@iddddaduncan]

Beautiful truck, it has 3.73 gears, what did the 6.8 have? 4.30 gears would be a pulling machine.

[@BryanVercoe]

I always assumed that crew cab short bed and extended cab long bed share the same 160” wheelbase? I can’t see ford making two separate wheelbase configurations for those trucks

[@marcochavanne]

I wish someone could do one of these tests using a 7.3 that has a Truck Norris cam. They supposedly bump horsepower and torque quite a bit.

[@alexsmba]

It was only 1-2 mph more than the 6.8. Shows how impressive the 6.8 is. It will be interesting to see how the EREV Super Duty pans out.

[@danielvidelock2875]

My friend tried to order a 7.3. You have to buy a 6000.00 upgrade package. Also it is common sense you will burn more fuel towing. Expect it and get over it.

[@bigmurph1447]

The 6000k upgrade package is for xl trucks. The xlt comes standard with the 7.3

[@pjbuckmaster]

@@bigmurph1447the 7.3 for 2025 only comes standard on a king ranch and above now. The lariat and down come standard with the 6.8 for 2025. Also the 7.3 comes with the lower rated transmission as well for 2025 so u have to upgrade to the 10r140 but the only way to get it is by adding the tremor package. Ford is making it expensive because they saw the sales for it increase every year and now are going to make u pay for it.

[@bigmurph1447]

@@pjbuckmaster well that sucks if that true.

[@easycheddy]

Did you do a test with the ram 2500 with the 6.4 Hemi

[@asphaltspecialties]

My 3.0 Duramax would rip up that hill

[@Thepulsewidth]

What’s trailer loaded wt and what was that grade you pulled?

[@seijirou302]

6% grade 10k lbs, 28x8.5ft

[@jerichoarmstrong5593]

Yeah but how long will this truck last if you tow alot ?

[@seijirou302]

It will outlast the Diesel's emissions equipment and cp4

[@pjbuckmaster]

@@seijirou302damn right it will.

[@Slythey]

longer than any modern diesel

[@RF-cz4ln]

👍🏻👍🏻👍🏻🇺🇸👍🏿👍🏿👍🏿

[@DONT_SLE3P]

Would this be a good 2 car hauler for hotshoting staying local?

[@brandonpittman5243]

Yes and less headaches than the diesel. The 6.8 would do fine as well

[@markosborn5713]

Driving rules in the USA lacks safety.

[@slaytanic921]

Elaborate

[@Slythey]

nah, we're fine- don't be a baby

[@hpkntnw]

We also have full sized trucks that handle the weight. We’re not towing a car with a Tourag.

[@Slythey]

@@hpkntnw euros can't afford the gas for vehicles like this and have medieval roads- they don't get it

[@M_dot202]

7.3/10R140>>6.8/10R100

[@phat-kw9ox]

So with taxes and fees you’ll be paying over MSRP for a new truck No thanks Larry miller

[@DirkDiggler-p5q]

Does the Ford 7.3L still have the cheap ass Chinese lifter problem?

[@chriskuntz1763]

It’s an oiling issue

[@freedomisntfree_44]

Still waiting to see as many as gm fail like you all talk about 😂

[@seijirou302]

​​@@chriskuntz1763 no it's a lifter issue. Solved with quality aftermarket lifters and no changes to oiling. You won't find a single example of these with a lifter and cam swap having failures. The new 23/24 trucks appear to be fine but the 20/21 had some bad lifter batches. Unsure if the 22s got any or not.

[@Billybob50119]

Nope, they still eat cams and lifters 👎

[@freedomisntfree_44]

@ 🤣 please show us