2008 HONDA HP4S CRF150R/RB OIL CHANGE KIT 2 Quarts of Honda HP4S SAE 10W-30 Full Synthetic 4-Stroke Motorcylce Oil. HP4S is compatible with synthetic blends such as HP4, as well as regular petroleum oils like GN4./ HP4S is recommended for use in all 2006 or newer motorcycles, ATVs, Scooters and PWC. There is no need to flush the crankcases before switching to HP4S. HP4S offers lower friction than conventional oils. Better oxidation resistance for better high heat performance. **Kit includes Two Genuine Honda OEM Oil Filters and Two Crush Washers.