I work for National Carriers out of Liberal, Kansas. I’m an owner operator. I’ve been using No-Mor Friction Product for close to two years now, and I have been really, really pleased with this product. I don’t have any smoke in my stack using the No-Mor Friction (metal conditioner) and fuel additive as well. I get 1-2% more horsepower. I get 1 ½ to 3 to 4% depending on how heavy my load is on my fuel mileage. It increases fuel mileage considerably. Ever since I put this in my rear end and my front steering hubs I haven’t had to change out a hub since I applied it. I’m really happy with this product. I love it. I’m going to use it until I retire.