Oil & Fuel 50hr front axle oil??

[dutchman56]

I have a GL4630gstc and will be doing the 50 hr service over the holidays. The operators manual says kubota UDT or sae 80w90. This seems to me to be two very different oils. UDT being a more hydraulic type oil with less viscoisty and 80w90 gear oil being a heavier oil and has the extreme pressure additives for bevel gears. What are others using.

 

[DmansPadge]

I have a GL4630gstc and will be doing the 50 hr service over the holidays. The operators manual says kubota UDT or sae 80w90. This seems to me to be two very different oils. UDT being a more hydraulic type oil with less viscoisty and 80w90 gear oil being a heavier oil and has the extreme pressure additives for bevel gears. What are others using.

There has been a bunch of talk about what to use... either will do. I still like to stick with 80/90. I don't know about your tractor... but I know the B series do not call for the front axle fluid to be changed until the 300 hr. mark.

 

[canoetrpr]

dutchman:

I kept with the premium udt stuff we get here in Canada. Thats what it comes filled with. The gear oil is really really thick - like molasses. I imagine it does not flow too freely when cold.

I see no real reason not to stick with the premium udt for the front axle.

 

[Jimbrown]

I put gear oil in mine. the UDT just runs out.

 

[dutchman56]

Went to dealer this morning and they say use UDT especially here in northern ontario and tractor is used in winter. Service technican confirmed tractor comes with UDT in front axle from factory. So 60 liters and $216 later I am all set plus engine oil and all filters which wife bought yesterday for me as a surprize with a toy Kubota tractor.

 

[frank_miller]

I use Amsoil 75-90 SG fluid.

 

[gotcha]

I have a GL4630gstc and will be doing the 50 hr service over the holidays. The operators manual says Kubota UDT or SAE 80w90. This seems to me to be two very different oils. What are others using.

My B26 manual says to use the exact same thing, but it says to change every 400 hours.
The Gotcha Man

 

[dutchman56]

My manuel says to change the filter and oil first time at 50 hours and then filter every 200 and oil every 400 hours. The dealer says many just change filter and they will service that way and not push oil change at 50 hours. But he told me to save old oil for my father inlaw who has many 1930 40 and 50 vintage tractors and dozers.

 

[Racer71]

I just came home with the Super UST for my 50 hour change. I like to change oil after the break in period to help get the metal out. It may be a while before I change the oil again.

 

[TalonDancer]

My manuel says to change the filter and oil first time at 50 hours and then filter every 200 and oil every 400 hours....

Are we still discussing 50 hr front axle oil?

'cause my manual says to change the front axle oil for the very first time at 400 hrs. And I don't see any filters for my front axle

FWIW I'm gong to use the KISS (keep it simple stupid) principal and use UDT in my front axle. I don't need yet another oil for this tractor

Talon Dancer