Usage:
Lubricants recommended for use in this engine are identified by the sub-headings that follow. The proper selection of one of these types and grade can be made from the Lubrication Instruction Chart. Careful attention to the proper selection will add to the performance, economy and life of your engine.
Crankcase Lubricating Oils
Use oils which meet Engine Service Classification CD or MIL-L-2104C. These are additive-type oils that have been approved for use in Caterpillar Diesel Engines.
SAE Grade to Use: The grade of oil is classified in terms of viscosity and is identified with numbers called SAE numbers. Oils having lower SAE numbers are more fluid and flow more readily than those oils having higher numbers. Use SAE 30 for temperatures above 32°F (0°C). Use SAE 10W for temperatures below 32°F (0°C).
The proper SAE grade of oil to select is determined by the atmospheric temperature at which the engine is started. However, during operation SAE 10W can be used successfully in the diesel engine crankcase when atmospheric temperatures are as high as 70°F (21°C).
To determine if the oil in the crankcase will flow in cold weather, remove the oil dipstick before starting and if the oil will flow off, the oil is fluid enough to circulate properly.
Lubricating Grease
Use Multipurpose-type Grease which contains both 3 to 5% molybdenum disulfide conforming to MIL-M-7866, and a suitable corrosion inhibitor. NLGI No. 2 Grade is suitable for most temperatures. NLGI No. 1 or No. 0 are suitable for extremely low temperatures.