2020 Super Duty

This was first trip pulling boat, 14.5 MPG @ 70 MPH.

It runs about 1 MPG better than my 2016.

Gas or diesel, how heavy a boat, any mountains? Last time I checked that's about 3.5 mpg better than my '14 F250 SD w/6.2 gas running 70 mph empty and 150,000 on the clock.

I just bought a 2020 F350 crew cab 8 ft box 4000 miles ago. First trip pulling a 20000 LBS flat bed trailer got 14 MPG on the way home no trailer got 21 MPG. I am impressed so far. Just don't try to put a magnetic sign on the aluminum doors.

I get about 14 mpg with my 2000 7.3 power-stroke, with 228,000 miles on it, so your not doing much better for a 20 year newer truck, not much to brag about.

Got this last week. Gonna do a road trip next week to Springfield-Branson area for the Ozark Farmfest.

Not bad

That looks just like mine, copycat.

How fast was that?

I see a big difference (3 MPG) 55 - 70 MPH.

I pulled 20K on 5th wheel two weeks ago at 60, it was 12 MPG.

I continue to be amazed at how mountains of expensive technology don't seem to be increasing fuel economy by enough to offset the expense. For the technology difference between a 2000 diesel to a 2020 diesel, these trucks need to be getting 50 mpg to offset the difference in purchase price and maintenance costs. I worked for Chevrolet when the HD trucks debuted with the LB7 Duramax. It was not unusual to have customer reports of 16-18 mpg (one guy personally told me his truck did 20), but that was when real diesel fuel was still available.

These modern trucks, one load of bad fuel, or bad DEF, and the repair cost will melt your platinum credit card. One flub with DEF in the wrong filler, and the owner just spent $10-13K. I just had a customer returning from a trip with his 5th wheel when 2014 truck stalled several states away. He was just shy of spending $10K to get the truck home. Better emissions is just about separating people from their money, nothing else.

Gas half-tons is where improvements have actually been made, because that is the bulk of the market. My BIL's F150 EcoBoost regularly turns 26 mpg+ on the interstate. The 2014 and up GDI GM trucks don't do bad, either.

That is why I plan to keep my 99 F-550 as long as I need a truck,whatever it needs I'll buy it rather than replace it.

That's why I keep my 95 and 96 f350s. They get 16 mpg, not bad for a 4x4 with 4.10s.

depends... on your rear end gearing...

my 2013 sd dually with 4.11gears will get 14.7 empty. Gets 7 pulling a 40 foot goose with around 30k total trailer. Gets 12-13 pulling empty 7k goose. However, I have not had a situation where I did not have enough power, even at 30k plus loads..

a sd swd with 3.27 gears will do much better on mpgs. However a 30k load with minor hills will see a lot of shifting, a whole lot of shifting.

Please explain what is a 40 foot goose. Thats one big bird!!!!!!!

That looks like a gas truck.....does it have the new 7.3?

I bought 2017 SD 350 SRW 4X4 6.2 with 4.30 rears about 13.2 mpg unloaded pulling 10000 lbs trailer about 10.2 depending on outside air temp little better in cool weather about what i said in hot weather. In 2020 I traded for SD 250 SRW 4X4 with 7.3 gas 10 speed trans 4.30 rears . With about 6000 miles it will get over 14 MPG unloaded and 10 pulling same load as 2017 with 6.2. The 10 speed trans really gives truck a leg up over 2017 with 6 speed. I never seem to get Mileage as good as some do, don't quite know why. The 2020 truck with 10 speed will shift to 8th gear and hang in pretty good on a pretty good hill. Just watch TL truck with comparison to chevy and dodge pulling trailer up mountain in colorado. The 7.3 litre Ford SD walks off and leaves them. If you don"t need a diesel or don"t want to pay about 10,000 more for your truck with a lot of expensive maintence, the 2,000 dollar 7.3 with 10 speed looks pretty good to me!