gillysmi

up north. yesterday was 84 degrees. I drove at 70 mph for almost an hour. never got above 168 degrees according to my in dash display.

Ford850

Mine runs about the same, but I have a 5.0 and I get pretty good mileage. The HD package, like the Max Tow package, gets extra cooling. That larger radiator with more tubes, more depth, and increased transmission cooling definitely keeps the temps low on mine unless I'm working it hard. My MPGs jump up once it gets to 150 or 160, but that takes 45 minutes of driving on mine. Obviously that varies seasonally. In the winter I would rarely see it above 145 degrees. I've never had mine get to 190, which is the sweet spot from what I've read
I think the EB is more sensitive to the cold stiff tranny fluid, since it would use boost much more often until the tranny is up to temp. I've read where some guys add a shield over the grill in cooler months to reduce the efficiency of the radiator, to increase their MPGs.
Overall, it makes a difference, but probably only a mile or 2 on average.

KILOFINAL

What's the difference in rad/cooling between the regular tow package and max? I have the regular tow package and the truck comes with a larger radiator/max cooling and auxiliary transmission cooler. Just curious.

Feathermerchant

This is for 2013 but I think the info is still the same.
https://www.fleet.ford.com/TRUCKBBAS...0Raptor_SB.pdf

Marked as P97
Note there are only 2 radiators for the whole lineup and only one fan.
I think the auxiliary automatic transmission cooler package includes an external 4 pass cooler. I'm pretty sure all the trucks have an in the radiator cooler.

Tim13

175 to 185 empty. I pulled about 4K pounds of boat last week, and it ran 194 steady.

Tim

Legendsk

On mine with tow but not max tow, if the temperature is moderate (70ºF) it will take 20 miles or minutes to warm up to 195ºF. If the environment is 100+ and / or heavy towing, big hills and altitude the transmission temperature may get to 200º but apparently that's where a thermostat kicks in because it just never gets above that. As long as the environment is above freezing the transmission temperature will stabilize at 195º. When the outside air gets down to 0º the transmission temperature probably won't get above 145º.

The transmission temperature really does affect gas mileage on mine. On mine the difference between 150º and 195º is about 5 mpg. If most of my driving was 10 mile trips with complete cool down between, I would expect around 15 mpg average. But that's just my experience with a couple of EBs.

VoiceOfReason

My 2011 EB FX4 MaxTow in the Toronto area is very temperamental about the transmission temperature. When it's cold out a 60 km commute will barely get it up to ideal temp, if at all. Fuel economy definately takes a hit and driveability is poo for the first few km, especially if it's really cold and the trans fluid is like syrup.

mechanicboy

98.6 degrees.

If you are referring to your transmission then I would expect 130-150 after 10 miles and 190 after 60 miles. I have the non-hd package.

For better mpg there's plenty of good advice if you use the search function. I know I've covered it before so include my user name when searching. The best mod is the driver mod.

Billy Mulek

The reason your mpgs are bad is because it's a max tow. I went from a 3.31 EB to the max tow EB and lost 2 mpgs.

I'm currently getting 14.8 mpg, what are you getting.?

kngranch1

How do you lock out gears never heard that before?