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if your manual is the same as mine, it recommends premium fuel when towing or in extreme conditions.
I'd bet that coyote would sing under some high test.
You are right!
Below is the statement in the Owners Manual....
There is nothing about gas in page 276 or in towing section that I could find, nevertheless, It seems I have a test to do....
Tks!!!
The issue with the eco and holding gears and leaning on the turbos is heat. There have been more than a few reports of overheating usually due to long, high altitude pulls in high temps. Unlike the SD trucks which run a whole separate cooling system for the transmission, turbo cooling, egr, oil, etc, the F150 has a single system that has to cool all of it. It makes the heat soak possibility much higher when the spike from hot CAC, transmission and engine all hit the single system at the same time.
100% spot on. Experienced it myself, even on 91 octane and stock tune. With 85 octane in Colorado, and 87 Tow/Perf 5* tune, the engine pulled like mad, but holy cow do the temps spike quickly up a 6%. Keep in mind though, my truck did not have a tow package and it had 3.15 gearing, both of which compound the issue, but still, that truck was a beast! With a larger radiator and a transmission cooler, it would probably tow up that mountain at 70 and stay cool.
100% spot on. Experienced it myself, even on 91 octane and stock tune. With 85 octane in Colorado, and 87 Tow/Perf 5* tune, the engine pulled like mad, but holy cow do the temps spike quickly up a 6%. Keep in mind though, my truck did not have a tow package and it had 3.15 gearing, both of which compound the issue, but still, that truck was a beast! With a larger radiator and a transmission cooler, it would probably tow up that mountain at 70 and stay cool.
I really wish Ford would do a dual cooling system on the eco like they do on the powerstroke. It would work to keep the engine pulling stronger due to lower intake air temps.
Sounds like someone needs some 5star transmission tuning.
I supposed its because the gear spacing is so tight that trying to kick down one gear at a time might be even more obnoxious. Like "hey, i need more, no thats not quite enough, one more, no, one more, meh, one more, yeah thats good." 10 seconds later you are finally in the right gear.
This is exactly what we did in our development while in tow / haul mode with the v8 and 10 speed. 7 th and 8 th gears are the gears to tow in , 9th 10 th are pretty much invalid and are moved out , towing any kind of weight.
My truck and trailer, in my signature, usually get anywhere from 10mpg to 11.5 mpg with 11mpg being the norm. I've pulled through highwinds of 40mph and hills and never had a problem with the engine getting hot or straining in high 90 degree weather with full sun. I always tow with "Tow Mode" and let the transmission find the best gear for the situation.
Perhaps Ford will come out with a new transmission program to address the issues with towing. Pretty disappointing.
I think the 10 speed is a solution in search of a problem. It's a product of the marketing department.
Do you have one, or own one? It's perfectly fine on the ecoboost, i think the 5.0 just doesn't have to torque for gears 9-10 with a load so it shouldn't be used and ford will probably flash the tcm accordingly.
Do you have one, or own one? It's perfectly fine on the ecoboost, i think the 5.0 just doesn't have to torque for gears 9-10 with a load so it shouldn't be used and ford will probably flash the tcm accordingly.
I think you are probably right about the 5.0. The 10th gear is so tall that even if you could get a 4.10 it would only make it as short as the old 6th gear with a 3.73.
I was actually wondering if the ecoboost can even really use 10th very well with 3.31's or 3.15's. Thats a super tall gear, you would need to be going like 80 mph to get to 1750 rpm with 3.31's.
10-27-2017, 08:44 AM
