Caterpillar transmission oil
- Thread starter Wildbill1
- Start date
What does the manufacturer say to use?
Is this the fluid in the powershift portion of the transmission, or does it have hydrostats? I think Cat is running hydros up to the D5, maybe even D6 sizes. If it is thick and white you have a water contamination issue that needs to be addressed first. Give a few more details, and I'll try and help more.
Oh wow, didn't realize how old that beauty was...but I still can't think of any fluid that would be thick and white without water contamination!
Oh wow, didn't realize how old that beauty was...but I still can't think of any fluid that would be thick and white without water contamination!
Me neither. White fluid means a water emulsion.
- Joined
- Jun 13, 2013
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Looks like Caterpillar TO-2 fluid...
This was replaced with TO-4 in 1990...
https://www.petersoncat.com/sites/cat/files/downloads/Cat TDTO SYN.pdf
This was replaced with TO-4 in 1990...
https://www.petersoncat.com/sites/cat/files/downloads/Cat TDTO SYN.pdf
The dozer uses TDTO for the transmission. The attached doc is the current Cat lubrication recommendations. I think the D4 is on pages 45-46. You can use other commercial TDTO oils as long as they comply with the specification.
The increased vis and white color that you saw is water contamination. A TDTO contains an additive that will act as an emulsifier so you get the milkshake look without water separation.
The increased vis and white color that you saw is water contamination. A TDTO contains an additive that will act as an emulsifier so you get the milkshake look without water separation.
Think you want a CAT T0-4 Oil 30 wt is still made.
Old dozers like a D8 used SAE 30 series 3 motor oil in all compartments except the hydraulic tank.
D7F speced 50 in the finals if my memory is correct.
D7F speced 50 in the finals if my memory is correct.
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