50 HR Service UDT, SUDR or UDT2?

[Obejuan64]

I'm doing the 50 hr service on my L3240 hst what transmission oil should I use udt, sudt or udt2, should I even use the kubota brand, engine oil n filters n gear oil I will get from from dealer, transmission not sure, I like to save some $$$, but is it worth it? Thanks in advance

 

[7879fordman]

I'm going sudt2 on my m7040 in about 20 more hours .

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[dex3361]

I used SUDT2 on both my L4400HST and my BX1500.

 

[Luv2Q]

What does your manual specify? Even that can be iffy. In one place, my manual says "UDT or Super UDT".

In another place, it specifies "Super UDT".

I'm opting to go with Super UDT just to be on the safe side. As for aftermarket brands, I'm not even going to look at 'em. I don't see the wisdom in saving maybe $10 per gallon (if that) as compared to a $10,000 machine. That's just my opinion, though. Not everyone shares it.

 

[jeff9366]

At 350 hour service I specified Super UDT2 hydraulic fluid. The HST transmission is much quieter now, the high-frequency whine disappeared.

 

[sandyc]

Changed out my HST fluid at 50 hours using Super UDT2. At the cost of the machine why take a chance. The engine oil was Mobil one synthetic. All filters were Kubota.

 

[sixdogs]

I thought UDT was good, SUDT is better and SUDT2 is best.
Also thought that SUDT would be phased out in favor of SUDT2.
Is any of my thinking correct?

 

[JOHNTHOMAS]

I'm doing the 50 hr service on my L3240 hst what transmission oil should I use udt, sudt or udt2, should I even use the kubota brand, engine oil n filters n gear oil I will get from from dealer, transmission not sure, I like to save some $$$, but is it worth it? Thanks in advance

I don't think the owners manual recommends a transmission fluid change at 50 hours soooo I wouldn't use any of them. When I'd change it I'd use SUDT2 which is replacing SUDT and in some places SUDT2 is less expensive than SUDT and other places higher.
I contacted Kubota about the early change of fluid on some Kubotas I owned at the time. Here is a copy of their response.
'John, the person or persons from TBN do not know what they are talking
about. There has not been a Service Bulletin or even a notice sent to the
dealers that this is a mistake in the Operators manual. Kubota Tractor
recommends for you to follow your Operators manuals for servicing of each
unit you have. The BX2660 and the BX25 do not have to have the transmission
fluid change until it reaches the 400 hour mark. For the F2680, it is the
200 hour mark. The transmission oil filters need to be replaced and the
suction strainers cleaned at or before the 50 hour mark for all three
units. Your selling dealer can also assist you if you have any questions in
regard to servicing your tractors. Thank you for purchasing and contacting
Kubota Tractor Corp..

 

[Obejuan64]

I'm thinking of using AMSOIL Synthetic Tractor Hydraulic/Transmission Oil, can't find dealer in NJ.

 

[Kubota 2007]

Years back Kubota recomended 50hr oil changes, the last few years that has changed. I still change all fluids at 50hrs. it worked for me on every Kubota I've owned. What can it harm,a little cost but alot of peace of mind.

 

[ritschner]

I have a 2007 L2800 HST and the service manual recommends a fluid change at 50 hours and then filters at 200hr intervals and fluid at 400 hr intervals. Not all models or transmission types have the same service intervals. Using the change interval specified in ones owners manual as advise to the owner of a different model is not in their best interest.

 

[sixdogs]

Years back Kubota recomended 50hr oil changes, the last few years that has changed. I still change all fluids at 50hrs. it worked for me on every Kubota I've owned. What can it harm,a little cost but alot of peace of mind.

I think they did this because Deere skipped the 50 hour change?

 

[fredhargis]

As others have mentioned, following whatever the manual for your tractor suggests is the best way. As to the specific oil, I read enough posts on this forum to know there are advocates for almost anything you want to use. I think I'll stay out of that debate.

 

[sixdogs]

Anyone know if this is correct?

I thought UDT was good, SUDT is better and SUDT2 is best.
Also thought that SUDT would be phased out in favor of SUDT2.
Is any of my thinking correct?

 

[7879fordman]

The m7040 book says udt2

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[WaxMan]

Go for the best, save your money on food or something else.

 

[crazyal]

My manual says not to change the fluid until 400 hrs. If yours says the same and you decide to follow it I would go with SUDT2 since you'll loose some oil and I would rather not try to catch it and reuse it. If your tractor has UDT in it then it'll blend just fine. If your tractor has either of the synthetic versions of UDT in it then you know you didn't lower what you already have.

 

[number two]

Anyone know if this is correct?

You are correct on all counts and SUDT is gone.Good call!

 

[MHarryE]

I read on TBN about changing transmission fluid and filter at 50 hours and believed. After I did it I read the book and found Kubota recommends 400 hours on the Grand L 40 series so I was out a chunk of change. My new M135GX, however, is 50 hours and 20 gallons of SUDT2.

 

[Bluegill2]

I'm thinking of using AMSOIL Synthetic Tractor Hydraulic/Transmission Oil, can't find dealer in NJ.

I personally wouldn't change the hydro oil at 50 hrs, but would change the filter/s. That said, go with UDT2. It is known to be best in HST transmissions. Gear drive wouldn't matter too much.