Engine Oil Recommendations - Honda EM4000SX Owner's Manual

SERVICING YOUR GENERATOR

ENGINE OIL RECOMMENDATIONS

Oil is a major factor affecting performance and service life. Use
4-stroke automotive detergent oil.
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 recommended range.
AMBIENT TEMPERATURE
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.
45