Went too far in the other direction, now it comes on at about 170, so, yeah, it's on all the time. I got royally porked by numbnut drivers on every single hill. If I can't take a run at it, starting out at about 55, how am I supposed to make the hill?
Anyway, it stayed at 185 except on the hills, got up to 210 a couple times. I let it rip wide open up every hill, was able to maintain the speed I started the hill at. The ATT pulls hard, but not hard enough to suck in little foreign cars driven by oblivous old men. I think I've got bumper stickers on my front bumper that weren't there before. GET THE F*** OUT OF MY WAY!!
Last big hill I rolled into at 45, thanks to the nitwits who approach in a 55 zone, let the hill bleed off 10 mph then accelerate after they porked me. I got about halfway up and the grade decreases very slightly, unbelievably, the truck grabbed hold of something and actually started putting on more speed! Had to check my mirrors to make sure the trailer was still there! I blew past 55 mph easy and had more but had to let off when I went over the top. THAT was what I wanted to see.
Thought I was doing great on fuel mileage because my gauge was still well above half, but I got 19 gallons in it so it wasn't spectacular after all. I figure 9 mpg overall. Need to check and see what I'm getting empty, used to be about 14 but I haven't checked it in ages. I'll take 9 mpg. There was a lot of black smoke when I needed it.