MAXGuard TO-4 is manufactured using highly refined base oils, premium additives and have heavy duty friction modifiers to help clutches to lock up quickly and firmly. MAXGuard TO-4 have shown excellent performance in all the manufacturer tests and provide complete hydraulic system protection for the power shift and power steering mechanisms. Our SAE 10W grade is designed to provide enhanced protection for light duty automatic transmissions while our SAE 30 and 50 grades meet specifications for off-road power shift transmission fluids