This kit fits all Maverick HD Bad Boy Mowers with Honda Engines. This is the OEM filter and OEM oil that comes in the mower when brand new from the factory. The oil and filter meets or exceeds all warranty requirements. 

QTY 1 - 015-0091-01 Honda Engine Oil Filter

QTY 2 - 085-6015-00 Quart Synthetic Blend Engine Oil 10W30

Running OEM oils ensures proper lubrication, and engine life. You should not run regular oils in small air cooled engines, they are mixed differently and have different additives. It is recommended that you change your engine oil every 25 - 50 hours