PLATE-VALVE 1948261 - Caterpillar

Engine Oil
These recommendations are subject to change without notice. Contact your local Caterpillar dealer for the most up to date recommendations.
API Oils
The Engine Oil Licensing and Certification System by the American Petroleum Institute (API) is recognized by Caterpillar. For detailed information about this system, see the latest edition of the "API publication No. 1509". Engine oils that bear the API symbol are authorized by API.
Illustration 1 g00546535
Typical API symbol
Diesel engine oils CC, CD, CD-2, and CE have not been API authorized classifications since 1 January 1996.
Table 1
API Classifications
Current Obsolete
CH-4(1)
CI-4 CE, CC, CD
- CD-2 (2)
(1) API CH-4 and CI-4 oils are acceptable if the requirements of Caterpillar's ECF-1 (Engine Crankcase Fluid specification-1) are met. CH-4 and CI-4 oils that have not met the requirements of Caterpillar's ECF-1 Specification may cause reduced engine life.
(2) The oil CD-2 is for a two-cycle diesel engine. Caterpillar does not sell engines that utilize CD-2 oil.Note: When oil meets more than one API classification, the applicable footnote is determined by the highest API classification that is met.Example - An oil meets both the API CH-4 and the API CF oil classifications. In this case, the API CH-4 applies.Cat DEO (Diesel Engine Oil)
Caterpillar Oils have been developed and tested in order to provide the full performance and service life that has been designed and built into Caterpillar Engines. Caterpillar Oils are currently used to fill diesel engines at the factory. These oils are offered by Caterpillar dealers for continued use when the engine oil is changed. Consult your Caterpillar dealer for more information on these oils.Due to significant variations in the quality and in the performance of commercially available oils, Caterpillar makes the following recommendations:
Cat DEO (Diesel Engine Oil) (10W-30)
Cat DEO (Diesel Engine Oil) (15W-40)Caterpillar multigrade DEO is formulated with the correct amounts of detergents, dispersants, and alkalinity in order to provide