Generac Maintenance Kit A0002075473 with Proprietary 5W-20 Synthetic Oil for 10kW Air-Cooled Generators Maintain peak performance of your air-cooled home standby generator with less hassle. Use this maintenance kit to service 10kW air-cooled units manufactured in 2008 with 530cc engines. Keeping up with your scheduled maintenance program with this kit will ensure your air-cooled generator operates in top condition and meets warranty requirements. Kit Includes: 1 Air Filter 1 Oil Filter 2, One-Quart Bottles of Generac?s Proprietary 5W-20 Synthetic Oil 2 Spark Plugs 1 Funnel Shop Towels Fits Model Numbers: Compatible with 2008, 10kW air-cooled Generac Guardian series.