Not ever being one to ever promote any product I can't help but completely agree that my experiences with amsoil products has been more than satisfactory. Several autos and many 2 & 4 strokers later the product has proven itself economical and trustworthy. Drain intervals of 20,000 with filter changes every 5,000 have proven to me you don't need to keep turning over low mileage oil in autos or cycles. Even at high mileage the oil does not smell or feel contaminated or broken down. Filtration is still important but the worry of broken down oil that has lost the proper lubrication and detergents is history within reason. I guess I am getting old enough to notice this kinda of stuff--Holy Crap