I feel this force occasionally. I pulled up behind a semi today that was going 75 and my MPG went up to 50. I was really far behind the truck too. I've also had the gauge read 150 going 60ish when I was behind a truck. Trucks pass me all the time here in Oklahoma, and I feel this force quite a bit. It's not really something I notice too often, since whenever I am getting passed by a truck I feel like it is throwing me off to the side of the road