Correct oil for hydralics on D6B?

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Jbayer

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Is it supposed to have hydraulic oil or straight 30w? It is a vain pump. The wet clutch is 30w according to the tag. Also the transmission fliud, someone told me it is the same as engine so 15w-40?

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catsilver

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The instruction to use engine oil came from the days when we used 30W before the days of 15W/40. The proper oil for hydraulics is 10W hydraulic oil, unless you are in a very hot climate when 30W is OK.

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bob

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Reply to catsilver:

The instruction to use engine oil came from the days when we used 30W before the days of 15W/40. The proper oil for hydraulics is 10W hydraulic oil, unless you are in a very hot climate when 30W is OK.

Engine oil is okay in the hyd system but always use TDTO in anything with a clutch. Flywheel clutch, steering clutches or powershift trans. Hystat machines need Advanced 10 Hyd oil in the drive system.
Later Bob

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