Nobody offers a more comprehensive line of motorcycle-specific oils and chemicals than Pro Honda. Developed through the performance and durability testing of professional racing, these Honda motorcycle oil and service products are crafted to the same high exacting standards as your Honda. A synthetic / mineral oil blend that combines the very best qualities of both types. HP4M also features a comprehensive additive package and friction-reducing molybdenum compound for smoother shifting, maximum fuel economy and peak horsepower. HP4M - the Pro Honda oil good enough to win a multitude of AMA National road-racing championships as well as the grueling Baja 500 and 1000. Pro Honda P/N: 08C35-A141M02.