Impact of Heavy Duty Tow Package (w/ 3.73 axle ratio) on MPG gas mileage

[bushpilot]

That’s about the most truck thing I’ve ever seen.

are we on page 4+ yet? good so I can hi-jack the thread!

I bought the truck when the wife was outta town...dealer was gonna drive me home...I said nope I came prepared....brought my own hitch, tow-bar & 7pin connector...had it all in the back of the jeep....didnt want them to think they had me by the balls!

the jeep is boosted 2 inches....the f350 makes it look like a toy

 

[Deadman]

I towed myself home after I bought my last diesel truck....the forum guys heads about exploded when they learned the truck didn't have 25 miles on it....

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It wouldn't even feel that featherweight behind it!

 

[bushpilot]

It wouldn't even feel that featherweight behind it!

it didn't....at only 3800 lbs (dead weight) it was nothing.
same as this beast towing the 8500 lb truck (and soon towing the Expy)....

 

[Fozzy]

Yeah but nobody complains if a work truck is rough at idle, has a clunky tranny, burns a little oil etc etc.

I’m skeptical too of the real benefit of a break in period but I do follow them religiously and always get an oil change after it reaches the end of that period.

Non of our trucks show any of those problems. No premature failures of any component other than the stupid emissions crap and usual recalls or TSB’s. We do have user error all the time. But that’s not the trucks fault. We try and take them to 180K miles before they go to auction. If we made the transmission clunk in the first thousand miles, pretty sure it would be toast by 180K. Not even sure what would cause a rough idle in a thousand miles. Knock some of the cam lobe off? It wouldn’t make it much longer if that happens. Glazing the brake pads with a heavy trailer with weak or no brakes would be my only concern. They just want you to get a thousand miles on it so you can’t bring it back when you figure out you’re Raptor can’t pull your 5th wheel.


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[Dice Roll]

I worked in shipping at an auto plant. Believe me those things got broken in right away!

I probably wouldn’t max tow right out of the gate with anything I wanted to keep a long time. Rings seat pretty much right away. Clutch packs I’m not so sure. You might get a little garbage out of the first oil change too. The guys at blackstone could tell when I’d used the diesel for heavy towing. I wouldn’t want an oil filter with some breaking junk all in it when pushing things to their limit.

 

[Artie]

the jeep is boosted 2 inches....the f350 makes it look like a toy

Yeah it does!

looks like it could have fit in the bed lol

 

[Paddler]

I'm at 269.7 miles on this tank, 23.6MPG, 441 miles to empty. Mixed city/highway. I routinely go over 500 miles on a tank. Standard hitch, no HD tow package, XLT Max.

 

[Artie]

I'm at 269.7 miles on this tank, 23.6MPG, 441 miles to empty. Mixed city/highway. I routinely go over 500 miles on a tank. Standard hitch, no HD tow package, XLT Max.

Those couple extra gallons in the max fuel tank really make a difference!

 

[dlcorbett]

You can do over 500 miles in a std wheelbase and smaller tank. I used to, but didnt have heavy duty or 4wd.

 

[Deadman]

We left northern WI and drove to Florida. ONE fuel stop put us in Florida. Max 4x4 3.73.

 

[Fozzy]

Tow package,lift,tires,rack,Max. Combined city, HWY and towing.



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[Deadman]

Tow package,lift,tires,rack,Max. Combined city, HWY and towing.



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Yikes.
Mines almost always 18 for average overall. It doesn't get run super hard, but it gets a lot of short trips.

 

[aggiegrad05]

I don’t tow anything but do have a heavy foot...that being said, I get about 15 combined. I’m not a crazy person on the road, but even when I try to baby it, I can’t EVER get over 17mpg on a tank. (Road trips are different, then I get about 20.)

I’m not complaining, I didn’t buy this thing to be efficient. But (and the whole point of this post...I know, I’m just now getting here):

I assume Platinums get worse gas mileage, we’d have to, right? Our engines are tuned higher (400hp v 375hp). That power means more fuel. Navis are different because it’s the Raptor motor, so they have different parts AND tuning to give them more power. I’d just be interested to see if the platinum owners around here get worse mileage than everyone else.

I’m sure some platinum owners have chimed in about their mileage, but I don’t really remember a thread where we compared mpg based on trim. We’ve talked about HD tow vs no, and 4wd v 2wd, but not trim level.

Has anyone else noticed?

 

[Fozzy]

Yikes.
Mines almost always 18 for average overall. It doesn't get run super hard, but it gets a lot of short trips.

If it’s just HWY driving it will get 18 mpg. It’s pretty close to what my 16’ 3.5 EcoBoost F-150 would get and my 6.7 would get 14 combined and 18 HWY. not disappointed at all. Mine is a Platinum, but I don’t think 25 HP would make a difference.


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[Paddler]

If it’s just HWY driving it will get 18 mpg. It’s pretty close to what my 16’ 3.5 EcoBoost F-150 would get and my 6.7 would get 14 combined and 18 HWY. not disappointed at all. Mine is a Platinum, but I don’t think 25 HP would make a difference.


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Agree. Not really much difference in output, and the fuel consumption should be equal unless you are deep into the gas pedal a lot.

 

[Dice Roll]

I must be a lead foot then because I get the same or worse than you guys and I have a 2wd with tow. It indicated over 20.5 a few days ago on a 130 mile round trip. Cruise was set to about 68 most of the time. Had quite a few hills though. It was showing 22 something when I reset it on the road until I passed a few people.

 

[Deadman]

I must be a lead foot then because I get the same or worse than you guys and I have a 2wd with tow. It indicated over 20.5 a few days ago on a 130 mile round trip. Cruise was set to about 68 most of the time. Had quite a few hills though. It was showing 22 something when I reset it on the road until I passed a few people.

I've proven the cruise kills 3-4 mpg on the highway..... Its horribly inefficient.

 

[duneslider]

I get about 12mpg towing my 5000lb camper. Still better than the suv with Hemi that I had so can't complain but the non-towing mileage is WAY better than the hemi was. A light foot, eco, and long distance has netted me pretty good fuel mileage (20-23). Most of the time the short around town trips my wife makes we get pretty bad mileage (13-15) but again that is still better than the Hemi was getting in the same situation. Considering this thing is way bigger than my commander was I think the mileage is amazing.

 

[AKentPhoto]

the fuel consumption should be equal unless you are deep into the gas pedal a lot.

This. Peak hp numbers are irrelevant to mpg. Often times a tuned turbo motor will get better hiway mileage than factory tune. Especially if you let the motor breathe better with an intake and exhaust. However the oems are getting much better at tuning (mostly because of direct injection) so that is happening less often now.

 

[SublimeHiPpOs]

From what I've seen so far from browsing a lot of vehicles, I thought that the "pro trailer backup assist" feature and the drive mode dial with 4 buttons surrounding it (adding the tx case lock and 4L mode) were a standard part of the HD Tow package. But I came across the one linked below, which apparantly has the package, but is missing these features/controls. Does that sound right?
https://www.zeckfordsales.net/used/Ford/2019-Ford-Expedition-c98e99f60a0e0a171b3402a3c90d78cb.htm#