Generac 8 kW Home Standby Generator Maintenance Kit. This kit is only for models produced before May 2013. It includes an air filter oil filter spark plugs oil funnel chamois and a reminder sticker. Maintenance is recommended at every 200 hours or 2 years. If running in a dusty environment more frequent maintenance may be required. Maintenance intervals may differ per model. Refer to the generator owner s manual for more information. It is recommended to use synthetic 5W-30 for temperatures between -20 and 1 100 degrees Fahrenheit 10W-30 for temperatures between -10 and 40 degrees Fahrenheit and SAE 30 for temperatures between 32 and 110 degrees Fahrenheit. Oil is not included. It has a 1 year limited warranty.