2017 F-150HD or F-250?

mhamershock wrote:
Another update due to recent addition of 5 Star's 91 octane Perf/Tow tune. Otherwise truck and trailer the same as before. I'm up to 25k miles on it, and have towed the big hauler some 3500 miles, with another 1500 miles on my little (2000 lb) trailer.

This trip was with the toy hauler loaded to about 8k, 4 people, and 3 dogs in the bed. I'd say 15k lbs total gross.

Did 850 miles round trip Portland, Or to Eureka, CA. Perfect weather both directions - sunny, calm. cool. Truck ran awesome - smooth and powerful as usual. Very low stress towing with this rig. To be honest, I didn't feel that much of a difference with the tune power-wise. These things make so much power stock that another 50 hp and 75 lb (guessing) isn't that noticeable. I will say that their 91 Perf tune is a monster, but not designed for towing heavy. I did notice differences with their trans tune - shifting is better: quicker and firmer. And, they totally lock out 9th and 10th gear - you will not go into them at all while in Tow/Haul mode. Not sure I like this - I can use 9th on occasion.

Some numbers:

7.5 MPG round trip (it's a hilly drive - lots of 6%-7% grades up and down)
19.3 PSI max boost
4650 max RPM (downhill - never got above 3500 uphill)
232 max coolant temp
221 max trans temp

Still very happy with this truck as a tower and DD. No issues at all in 25k miles. So glad I got this and not a 3/4 ton. If you are towing 10K or less this is the truck for you.

Mike