I’m an owner operator. I’m in the trucking business. I have a 1983 Peterbilt with a 3406 CAT. I haul general freight and over-dimensional freight. I’ve used the No-Mor Friction product for about two and a half years now. My fuel mileage has improved on average from 8/10s to one mile per gallon. The temperature in my motor and rear end and all gear boxes has dropped. The oil in my gearboxes and my motor at the time of service, the oil and the grease in the rear ends is in a lot better shape. I’m thoroughly impressed with this product and would recommend it for anyone. I do use it in my personal vehicles and my other equipment at home, and I’m really impressed with it.