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used for engines and for machines are offered by Caterpillar dealers. Caterpillar fluids are also offered for continued refills. Consult your Caterpillar dealer for more
information on these Caterpillar fluids.
Caterpillar recommends the use of the following Caterpillar fluids: ar Multigrade Diesel Engine Oil DEO
ar TransmissionDrive Train Oil TDTO ar Multipurpose Tractor Oil MTO
ar Hydraulic Oil HYDO ar Biodegradable Hydraulic Oil HEES
ar Gear Oil GO ar Multipurpose Lithium Grease MPG
ar Multipurpose Molybdenum Grease ar Special Purpose Grease SPG ar Premium Grease CPG ar
Extended Life Coolant ELC ar Diesel Engine AntifreezeCoolant
CATERPILLAR DIESEL ENGINE OIL DEO
Caterpillar DEO has been formulated with detergents, with dispersants, and with sufficient alkalinity in order to provide superior performance in Caterpillar diesel
engines. The multigrade DEO is blended in SAE 10W30 and in SAE 15W40. Use the table of lubricant viscosities to choose the correct viscosity grade that is based on
ambient temperatures. Multigrade oils provide the correct viscosity for a broad range of operating temperatures and for cold engine starts. Multigrade oils are also effective in
maintaining low oil consumption and low concentrations of deposits on the pistons.
For maximum performance in the engines in Caterpillar machines, Caterpillar recommends the following engine oil:
1. Diesel Engine Oil DEO
Multigrade DEO can be used in other diesel engines and in gasoline engines. Consult the engine manufacturers guide for the recommended specifications. Compare the
engine manufacturers specifications to the specifications of Caterpillar DEO. The current Caterpillar specifications are listed on the label and on the product data sheets.
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2. Commercial Diesel Engine Oils
The performance of commercial diesel engine oils is based on API categories. The API categories were developed in order to provide commercial lubricants for a wide variety
of diesel engines that operate at various conditions.
When a Caterpillar DEO is not used, use the following commercial oils: • Multigrade API CG-4 Preferred alternative
• Multigrade API CF-4 Acceptable alternative The following explanations of these API categories can be used in order to make the
proper choice of a commercial oil.
3. Lubricant Specifications
Lubricant Information
General Information The information that is provided is the latest recommendations for Caterpillar engines
and for Caterpillar machine compartments. This information supersedes all previous recommendations which have been published for Caterpillar machines. Special
lubricants are required for some machine compartments and it will be necessary to continue to use these special products.
This information is only for Caterpillar machines. For more lubricant recommendations, refer to Operation and Maintenance Manual, SEBU6251, Caterpillar Commercial
Diesel Engine Fluid Recommendations, Operation and Maintenance Manual, SEBU6385, Caterpillar On-Highway Diesel Truck Engine Fluid Recommendations,
Operation and Maintenance Manual, SEBU6400, Caterpillar Gaseous Fueled Spark Ignited Engines Lubricant Recommendations, and Operation and Maintenance
Manual, SEBU7003, Caterpillar 3600 Series Diesel Engine Fluid Recommendations.
Engine Oil The Engine Oil Licensing and Certification System for engine oils by the American
Petroleum Institute is recognized by Caterpillar. For detailed information about this system, see the thirteenth edition of the API publication No. 1509. Engine oils that
bear the API symbol are authorized by API. Examples of the API symbol are shown in Illustration 68.