Engine Oil Recommendations - Honda WT40X Owner's Manual

SERVICING YOUR PUMP

ENGINE OIL RECOMMENDATIONS

Use 4-stroke motor oil that meets or exceeds the requirements for API
service category SJ or later (or equivalent). Always check the API
service label on the oil container to be sure it includes the letters SJ or
later (or equivalent).
AMBIENT TEMPERATURE
SAE 10W-30 is recommended for general use. Other viscosities shown
in the chart may be used when the average temperature in your area is
within the indicated range.
The SAE oil viscosity and service category are in the API label on the
oil container. Honda recommends that you use API SERVICE category
SJ or later (or equivalent) oil.
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