Sierra 18-9798 2-Stroke Marine Oil Mixing Bottle Sierra 2-Stroke Oil Mixing Bottle is a re-usable bottle for precise measuring of oil to fuel ratio for your engine. Size 32 fl. oz. Directions Determine amount of gasoline you will be mixing and proper oil to gas ratio your engine requires. Fill bottle with 2-cycle engine oil up to the correct mark for the amount of gas being mixed. Pour oil into gas container and mix thoroughly. Interchangeable with Mallory 9-82311 California Residents WARNING Ca