UDT vs. SUDT

/ UDT vs. SUDT #1  

Kabuki

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Nov 29, 2009
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I'm trying to decide what to use for my 50 hr fluids/filters change on my B2320HSD. What is the difference between the standard UDT hyrd fluid and the 'Super' UDT?? Friction modifier?? The manual seems to suggest that I can use either. My experience has taught me that more expensive is not nessessarily better.
Thanks to all.
 
/ UDT vs. SUDT #2  
I'm trying to decide what to use for my 50 hr fluids/filters change on my B2320HSD. What is the difference between the standard UDT hyrd fluid and the 'Super' UDT?? Friction modifier?? The manual seems to suggest that I can use either. My experience has taught me that more expensive is not nessessarily better.
Thanks to all.
My experience has taught me that cheaper is rarely less expensive, some times but usually not. I use SUDT in all of mine and the "piece of mind" is worth the difference between the 2 for me since I have very little actual education (knowledge imparted by those who actually know not feeling imparted by those who feel") concerning the true difference between the 2 other than dollars. My dealer recommends SUDT even when he is paying for it.
 
/ UDT vs. SUDT #3  
I'm trying to decide what to use for my 50 hr fluids/filters change on my B2320HSD. What is the difference between the standard UDT hyrd fluid and the 'Super' UDT?? Friction modifier?? The manual seems to suggest that I can use either. My experience has taught me that more expensive is not nessessarily better.
Thanks to all.

I have the identical tractor 60 hrs on it. When I did the 50 I used UDT. Wish I had used SUDT. I now have noticable whining in transmission I did not have before. Many here have suggested that is typical with UDT vs SUDT. The only real proof I have is the obvious increase in whining going from factory filled SUDT to owner filled UDT.
 
/ UDT vs. SUDT #4  
I had the exact same experience as sailorman at the 50hr mark. Switched back to SUDT this fall at the 300hr mark night and day difference. A lot more quieter specially in colder temperatures. And to me the hydraulics seems to work smoother.
 
/ UDT vs. SUDT #5  
I live where it gets cold so SUDT only for me. I would rather spend a few extra dollars now than a few thousand if something goes wrong.
 
/ UDT vs. SUDT #7  
My inclination is to go with SUDT as it is not that expensive no more often than you change it.

I can't honestly say that SUDT is "better" for everyone as I used UDT on my other BX for six years and my son in law is now on his second year without problems, but I just feel better with it. I have never used anything but SUDT in my 2660, so I can't compare the two in it.
 
/ UDT vs. SUDT #8  
Kabuki

As the others say, Super UDT. It has such a low flow rate and is designed for cold temperature use, without sacrificing high temperature protection. It is the more modern, higher tech version, if you will.

You don't say where you are located, but unless you are in AZ, So Cal, or Florida, it is a no brainer. If you operate your tractor in temps below 32F, then SUDT is what you want.

As it is, the warmup time is long on these hydros.
 
/ UDT vs. SUDT #9  
UDT is for use in places where it never freezez (like where I live). SUDT is the exact same stuff, but with anti-freezing additives, for places where it gets colder than 32F/0C.
 
/ UDT vs. SUDT #11  
I am new to the tractor world and I am about to do my 50 hrs fluid change on my L3240 and was wondering if you should use Kubota oil and fluid or can you use high quality fluid that meets the specs that Kubota requires.
 
/ UDT vs. SUDT #12  
I am new to the tractor world and I am about to do my 50 hrs fluid change on my L3240 and was wondering if you should use Kubota oil and fluid or can you use high quality fluid that meets the specs that Kubota requires.

Yes. This will be the most accurate response you will recieve concerning this.:) I would for sure use Kubotas SUDT.
 
/ UDT vs. SUDT #13  
I have mine serviced at the dealer, but when I was doing my own maintenance, I used Rotella and New Holland as well as Kubota products. I would be comfortable using any good quality lubricant/fluid as long as it meets the requirements outlined in your manual.

I had my son pick up a couple of 5 gallon containers of fluid for my Case this summer and instead of getting it where I normally buy it, he went to the Case Dealership and got Case fluid and I about stroked out when I saw the bill. I can get ARCO for about half the price.
 
/ UDT vs. SUDT #14  
My L3130 came with NH H/T fluid in it and was very whiney. At first change I put SUDT in it - very much quieter and smoother. We get high summer temperature here and SUDT works better on that end too.

Here is a link for more info

Kubota UDT/SuperUDT Specifications

Vernon

Actually there are some other post though out the tractor forums that show the regular UDT works better in hotter weather then SUDT. I guess the UDT holds its viscosity better at higher temps.
 
/ UDT vs. SUDT #15  
UDT is for use in places where it never freezez (like where I live). SUDT is the exact same stuff, but with anti-freezing additives, for places where it gets colder than 32F/0C.

Actually there are some other post though out the tractor forums that show the regular UDT works better in hotter weather then SUDT. I guess the UDT holds its viscosity better at higher temps.

Tom_H, I don't know if it is a matter of "additives", rather SUDT is a multi-viscosity fluid to begin with.

Tailrotor, Regular UDT is a higher viscosity fluid. Better at higher temps? I sort of doubt it. The days of "thicker is better" are over. It has been reported that Kubota now fills everything, for all places, with SUDT. FWIW.
 
/ UDT vs. SUDT #16  
My machine is used much more in hot weather, i use udt.
 
/ UDT vs. SUDT #17  
Tom_H, I don't know if it is a matter of "additives", rather SUDT is a multi-viscosity fluid to begin with.

Tailrotor, Regular UDT is a higher viscosity fluid. Better at higher temps? I sort of doubt it. The days of "thicker is better" are over. It has been reported that Kubota now fills everything, for all places, with SUDT. FWIW.

SUDT was designed for colder climates and UDT was the standard oil and the S is not for synthetic Sudt is a mineral base oil.
 
/ UDT vs. SUDT #18  
SUDT was designed for colder climates and UDT was the standard oil and the S is not for synthetic Sudt is a mineral base oil.


This topic is years old here. SUDT was designed for more then a hyd oil if you look into it.

I also do not use it and use Amsoil fluid..
 
/ UDT vs. SUDT #19  
This topic is years old here. SUDT was designed for more then a hyd oil if you look into it.

I also do not use it and use Amsoil fluid..

Whats the Amsoil equal and how much does it cost? If you don't mind.
 
/ UDT vs. SUDT #20  
It got down to -5 last night. SUDT is the only hydro oil the dealer recommends for our location.
 
 
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