FDA Approved Lubricant [Kegs] 4 oz tube of FDA approved lubricant. Operating temperature 0 to 185 degrees. You can use this to lubricate keg o-rings. [Also: Keg Repair Part #s] Petrol-Gel Lubricant, 4oz Also: Kegerator Tips & Gear | Keg Repair Part #s | 5 Recent Keg Finds | Build A Recirculating Draft Line Cleaning Pump | Mark II Keg and Carboy Cleaner Draft Line Cleaning Pump Conversion