Each and every product of Hi-Gear is engineered to meet or surpass the strictest of industry standard specifications. Hi-Gear maintains its own research and development facility and formulations are constantly under review to ensure the latest technologies are implemented. Failure to properly seal and condition steering components may result in faulty operation or even failure. Steer Plus restores and conditions steering system components. Steer Plus with SMT2 prolongs the life of the power steering unit by 1-1/2 to 2 times. One can treats up to 2.5 quarts. For hydraulic systems with capacity of more than 2.5 quarts, use 4 fluid ounce per quart of fluid.