Just a thought but I'm trying to find out if I can do something to help my fuel economy. My 2012 CCT is getting about 33mpg, to my mind a bit on the low side. I expected somewhere closer to 40mpg. My normal commute is 35 miles one way with 2/3 of it at 75-80 mph on a turnpike. I've read that the CCTs take a big dive above 75, is that common? While it's not imperative for the mileage to be higher, I don't want my HD buddies to out do me on trips. Thanks all.
I'm retired, so I don't commute anywhere (hey, it's good to be old, in some respects). On my '12 XCT, I get around 40 - 42 in most of my backroad day trips, as well as most of my superslab days visiting far-flung relatives. On the backroads, I ride pretty spirited, but we're typically talking 55mph limits, so I don't cruise much above 65, and then there are towns with 30 or 40 limits thrown in. On the superslab, I'm typically doing a real (i.e., GPS, not speedometer, which is a little bit high) 71 or 72. I have nothing against going over 100, for instance; it's just that I do that sort of riding in pretty short bursts.
You have to keep in mind that wind resistance increases with the square of the speed. That is, if you're going 70mph and you increase to 77, you just jumped 10 percent in speed, but the wind resistance -- and hence the power to overcome it -- went up a bunch
more than that. So, yep, you're going to pay for those fast freeway droning miles.
A couple of questions. You have any engine or exhaust mods? And do you get time to do any full-tank backroad weekend jaunts, so you can check your mileage at slower speeds?