I'd say that for a new tractor owner, what is best is what the manufacturer recommends unless it's a huge problem for you to obtain that fluid due to distance from the dealer or finances. I think Mobile Delvac is the best overall value with the highest degree of confidence that it's a quality product for that price. If I had a Kubota, I'd be questioning multiple dealers tying to find out why their fluid is so thin and lacking in additives. Maybe there is a reason like their base oils possibly are far superior, but it would take a lot of convincing for me to believe that. Even so, I'd stick with UDT2. The reason I say this is because the tractor manufacturers and dealers have the most stake in the game. Like it or not, their fluids absolutely must work well for the masses or they would go broke fixing warranty claims.

​@@Redneck_Ed I was wondering if you have tested Kubota udt fluid vs the Kubota udt2

Me too. The testing shows that Permatran is a good product.

Can you post the title of the BITOG thread or link to it? I'm not seeing it when I search BITOG.

@@Redneck_Ed I've tried posting the link a couple times but the post disappears.

@@marstedt No problem. I found it by title and posted a link to the BITOG thread in the description of this video. Thank you for letting me know!!

I will not, but if I had an issue with the price or if Permatran was not easily accessible to me, the SuperTech was pretty good. Only thing is that I would definitely take more time and care in cold weather to make sure the hydraulic fluid is warm before using the transmission or hydraulic functions. Maybe just let it warm up for an extra 5 or 10 minutes and then start out slow using the loader with an empty bucket (i.e. no load). Just some ups and downs to get it flowing. I know that even with the Permatran, you can see the fluid looks a little cloudy inside the sight glass when it's cold, so that's another indication of whether the fluid is warmed enough.

@@mark7330 huh?

No, I have only tested these 9 fluids which has cost more than my channel makes in ad revenue. This brand is on my list though for possible future testing.

@@markhammersmith8361 I don't make a whole lot of youtube revenue to pay for this testing, and Schaeffers is not readily available here locally. I had to draw a line. Maybe I'll test it in the future.

@@Redneck_Ed Got it. Agreed, makes sense

It definitely is the thinnest fluid of all that I had tested, but at 51.6, it's high temp viscosity was still within the typical range of 50-59 for tractor hydraulic fluid.

@Redneck_Ed was that near the high end of the temperature spectrum or just temperatures you may see? My concern would be how it does at the very end where you would decide to dial back the machine to prevent it from overheating. That is the point where damage happens fast. My second concern is when the temp of the fluid is as an "average". Then say the machine is working hard and climbing temps, which means somewhere in the system. Their is a really hot spot that is well over operating temperatures. Typically around a valves or pumps which happens to be lots of seals. That spot, which is creating a tremendous amount of heat, is my largest concern. That oil, against that seal or area of heavy friction will be much hotter than the average temperature and thus my concern is how it performs rght outside of the operating temperatures.

​@@nicholasmendoza6159 The SUS and cST viscosity tests are performed around the same temp as the ASTM D445 standard (temp shown in the results chart). All of the fluids were within range for typical THFs. Also don't forget that Kubota UDT2 had the highest viscosity index spec at 199 which is a measure of viscosity stability over a large temp range. If temp extremes are your concern. then VI is the more important number.

It is the Blackstone standard transmission oil analysis which is $35 plus the TAN add-on test for another $10. Here is a link to that test package: www.blackstone-labs.com/product/oil-tan/

@@Redneck_Ed Thanks!

@@Redneck_Ed I received 2 containers. Do I fill both up with new Rotella HD or can I fill one with my existing utf and one with new Rotella HD?