Cerma is NOT a lubricant… It is a ONE TIME metal treatment that PERMANENTLY reduces friction ~ 80% and emissions ~ 92% in engines, lower units, hydraulics, power steering and air conditioning. It impregnates liquid ceramics into the metallurgy, producing a permanent “diamond hard, glass smooth” surface. Oil changes can be extended by at least twice the regular interval. Cerma also eliminates moisture related problems like hydrogen embrittlement and acids in the crankcase. It will not void any warranties or manufacturer’s tolerances.