20-22 kw home standby generator maintenance kit, for units manufactured in 2013 or later, 999 cc generac ohvi engine, maintenance is recommended at every 200 hours or 2 years, if running in a dusty environment, more frequent maintenance may be required, refer to the generator owner's manual for more information, kit includes, air filter, oil filter, spark plugs, oil funnel, chamois & a reminder sticker, recommended oil: synthetic 5w-30 for temperatures between -20 & 1100 degrees Fahrenheit, 10w-30 for temperatures between -10 & 40 degrees Fahrenheit, sae 30 for temperatures between 32 & 110 degrees Fahrenheit, oil not included.