6UPPERLEVELLOWERLEVELOIL GAUGEOil gaugeUpper levelLower level4. PRE-OPERATION CHECKCHECK ENGINE OILBefore checking or refilling oil, be suregenerator is located on stable and levelsurface with engine stopped.1) Remove oil level gauge and check theengine oil level.2) If oil level is below the lower level "L"refill with suitable oil (see table) to upperlevel "F" after removing the engine oilfiller cap.3) Change oil if contaminated.(See "How-To" Maintenance.)Recommended engine oil :Use 4-stroke automotive detergent oilof API service class SE or highergrade (SG, SH or SJ is recommended).SAE 10W-30 or 10W-40 isrecommended for general, all-temperature use. If single viscosity oilis used, select the appropriateviscosity for the average temperaturein your area.Oil capacity 0.41 US-gal (Upper level)1.55 liters (Upper level)NOTE :The engine is equipped with an oil sensorunit (hydraulic pressure detection type)that will automatically stop the engine ifoil in the crank case is reduced below thespecified level. Should the engine beautomatically stopped, be sure to checkthe amounts of fuel and oil.When the oil is reduced below thespecified level, add new oil to the upperlimit. Since the oil sensor will not detectthe deterioration of oil, visually check thequality or determine it by the specifiedtime and then change the oil if necessary.(Refer to page 25.)OIL FILLER CAPAmbienttemperatureSingle gradeMultigrade5W10W20W#20#30#4010W - 3010W - 40