Caterpillar recognizes and supports the American
Petroleum Institute (API) "Engine Oil Licensing and
Certification System" for engine oils. The API
publication No. 1509, 13th edition, contains the detailed
information concerning this system. Engine oils bearing
the API symbol am licensed by the API.
Examples of the API symbol.
Diesel engine oil classifications CD, CD-2 and CE will
not be API licensed categories after January 1, 1996.
Caterpillar will only reference those categories that are
licensed by the API. The table summarizes the status of
STATUS OF SEVERAL OIL CLASSIFICATIONS
1CD-2 and CF-2 are oil categories for two-cycle diesel
engines. These oils are NOT recommended for Caterpillar
Engine Lubricant Specifications
Caterpillar oils have been developed, tested, and
approved by Caterpillar to provide the performance and
life that has been designed and built into Caterpillar
diesel engines. Caterpillar oils am used for engine
development and factory fill. Caterpillar oils are
available from Caterpillar dealers. Due to significant
commercially available oils, Caterpillar recommends the
Caterpillar Diesel Engine Oil (DEO)(multi-grade)
Caterpillar DEO multi-grade oils are formulated with
detergents, dispersants, and sufficient alkalinity to
provide superior performance in Caterpillar diesel
engines. DEO multi-grade oils are blended in two
viscosity grades: SAE 10W-30 and SAE 15W-40. Refer
to the lubricant viscosity chart to choose the correct
Multigrade oils provide the correct viscosity for a broad
range of operating temperatures and for cold engine
starts. Multi-grade oils are also effective in maintaining
low oil consumption and low levels of piston deposits.
Caterpillar DEO multi-grade oils are also qualified for
use in other diesel engines and in gasoline engines.
Consult the engine manufacturer's guide for the
recommended specifications, and compare to the
specifications of Caterpillar DEO multi-grade. The
current Caterpillar DEO industry specifications are fisted
on the label and on the product data sheets.
Cold Weather Lubricants
Multipurpose Tractor Oil (MTO)
Caterpillar Multipurpose Tractor Oil (MTO) is available
for use in the implement steering, hydraulic systems,
and steering control mechanisms of tractors, and for use
in the Caterpillar rear drive axles. It has an ambient
temperature range of -25C (-13F) to 40C (104F) in
For ambient conditions that are below -25C (-13F)
check with your supplier for commercially available
Multipurpose Tractor Transmission Fluids with the
required ambient temperature capability for your area
that meet Ford "M2C134-C/D" specifications.
Caterpillar Multipurpose Tractor Oil (MTO) is not the
same as Caterpillar Transmission/Drive Train Oil,
and does not meet Caterpillar's specifications for
TO-4 oil. Caterpillar MTO should not be used in
compartments which specify TO-4 oil.