3. Operation 3.1 .2 Lube Oil Air temperature Single grade Multi grade 'C 1' Using other than the specified lube oil will lead to seizure of parts, abnormal wear, and shorten engine lif e. (1) Selection of Engine Lube Oil Use the following lube oil: API Classification ............................. CD SAE Viscosity ............................. 15W40 (2) Selection of Oil for Marine Gear SAE Viscosity ................... .. ............... 30 -40" ~4l'l ;;· ~ 67' (3) The Sail Drive attached to 2GM20(F)(C) and 3GM30(F)(C) SAE Viscosity ...................
90 or 80W90 If you opera te your equipment at temperatures below the limits shown, consult your dealer for special lubricants and starting aids. m (4) Handling the Lube Oil 1) When handling and storing lube oil, be careful not to allow dust and water to enter the lube oil. Clean around the filter port before refilling. 2) Do not mix lube oils of different types or brands. Mixing may cause the chemical characteristics of the lube oil to change and lubricating performance to drop , reducing the engine's life. 3.1.3 Cooling Water (For Fresh Water Cooling Type only) It is Important to check the cooling water daily. Be sure to use clean soft water (tap water) for cooling fresh water .
Be sure to add antirust or anti - freeze to cooling fresh water . Before supplying lube oil to the engine and marine gear for the first time, extract all the lube oil already in the tank. Use new lube oil. 3) Lube oil supplied to the engine will In cold seasons, the antifreeze is especially important. Without antirust , cooling perfor- mance will drop due to scale and rust in the cooling water system . Without antifreeze, cooling water wi ll freeze and expand, breaking various parts. For your reference, antifreeze mixed with antirust is now avail- able in the market. undergo natural degeneration with time even when the engine Is not used.
Lube oil should be replaced at the specified intervals, regardless of whether the engine is being used or not. 21