Honda HSM1336i Owner's Manual page 87

3. Fill with new recommended oil up to the upper limit.
Running the engine with a low oil level can cause engine damage.
This type of damage is not covered under the Distributor's Limited
Warranty (U.S.) / Distributor's Warranty (CA.).
4. Screw in the oil filler cap/dipstick securely.
Wash your hands with soap and water after handling used oil.
SERVICING YOUR SNOW BLOWER
OIL FILLER CAP/DIPSTICK
UPPER LIMIT
85