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 & 1,100 Degrees Fahrenheit, 10W-30 For Temperatures Between -10 & 40 Degrees Fahrenheit, SAE 30 For Temperatures Between 32 & 110 Degrees Fahrenheit, Oil Not Included.