Originally Posted by Fred H.
Towing any TT or 5th Wheel at 71 MPH is a risky move. Even though I've done it many a times. (Have been known to hit 80 at times)
But after reading about the tire blow outs from these cheap tires that are put on the trailers today, and going to the tire web sites of the brands of trailer tires used, all of them say maximum speed of 65
The low max speed rating of the trailer tires has got my attention too. I had been routinely running 70-75, and like you, "tested" the EcoBeast on a couple of long 5-6% grades to see what she was made of. Needless to say, I had to back out of it long before topping out ... waaaaay too much speed.
Backing down to 65, she just purrs along in 5th & 6th gear with ~8700 lbs, feeling solid as a rock, and I'll get 10+ MPG at that speed too. I wish they had 75 MPH rated tires. That would be about right.
2015 Flagstaff 8528RKWS
2013 Ford F-150 Ecobeast