Who should use F2-21?
Any one who wants to save fuel money should use it all the time. F2-21 is for users of all types of motor vehicles (2 cycle and 4 cycle) including gasoline or diesel automobiles, trucks, buses, military vehicles, motorcycles, water craft, gas turbines, garden equipment, tractors, fishing boats, locomotives, taxi fleets, motorcycles, tugboats, off-road vehicles, and stationary industrial equipment, such as power generators.
