• Place an oil pan under the engine
• Remove the dipstick to release air pressure
• Place an oil pan under the spark plug hole
• Tilt the machine on its side to drain oil from spark plug hole.
• Reinstall the spark plug
• Remove the air cleaner cover and add new oil through the air cleaner hole until an appropriate level shows on the dipstick
Note: Briggs 5.5 HP engine holds approximately .51 liters or (17 oz) or 1 pint 1 1/2 ounce SAE 30