
13 Maintenance Section Lubricant Specifications
For maximum transmission service life and performance, Caterpillar recommends Caterpillar Transmission/Drive Train Oil (TDTO).
Table 5
Caterpillar TDTO
Lubricant Viscosities For Operating Temperatures
Cooling of | Oil Viscosities | Minimum | Maximum | |
Transmission | Temperature | Temperature | ||
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Raw/Seawater | SAE 30 | −15 C (5 F) | 80 C (176 F) | |
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SAE 50 | −5 C (23 F) | 95 C (203 F) | ||
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Jacket Water | SAE 50 | −5 C (23 F) | 95 C (203 F) | |
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Contact your Caterpillar dealer for part numbers and for sizes of available containers.
NOTICE
This oil is formulated for transmissions and drive trains only, and should not be used in engines. Shortened engine life will result.
NOTICE
Caterpillar Gear Oil (GO) is not the same as Caterpillar Transmission/Drive Train Oil, and does not meet Caterpillar’s specifications for
Caterpillar Transmission/Drive Train Oils
If Caterpillar Transmission/Drive Train Oil is not used, commercial oils meeting the Caterpillar
Commercial Marine Transmissions
For marine transmissions which are not manufactured by Caterpillar, refer to the lubrication recommendation of the OEM for the marine transmission or the vessel.
i01111406
Synthetic Base Stock Oils
SMCS Code: 1300; 1348; 7581
Synthetic base oils are acceptable for use in Caterpillar engines if these oils meet the performance requirements that are specified for the engine compartment.
Synthetic base oils generally perform better than conventional oils in the following two areas:
•Synthetic base oils have improved flow at low temperatures especially in arctic conditions.
•Synthetic base oils have improved oxidation stability especially at high operating temperatures.
Some synthetic base oils have performance characteristics that enhance the service life of the oil. However, Caterpillar does not recommend the automatic extension of oil change intervals for any type of oil. Oil change intervals for Caterpillar engines can only be adjusted after an oil analysis program that contains the following tests: oil condition and wear metal analysis (Caterpillar’s S·O·S oil analysis), trend analysis, fuel consumption, and oil consumption.
i01111412
Re-refined Base Stock Oils
SMCS Code: 1300; 1348; 7581
The process that is used to make