Transmission and Front Axle Fluid
- Thread starter TractorTeen
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TractorTeen
Bronze Member
I come to the conclusion to just go buy 5 gallons of UDT and cut the confusion. Thanks everybody for your help.
Thanks,
Dave
Thanks,
Dave
Junkman
Super Member
My Kubota dealer said that the UDT was used as the first fill to help the bearings and races to seat as well as the gears to "run in". At the 50 hour service they install 80 - 90 gear oil where Kubota says that it is OK. When I lived in NH back in the early 1960's, my Corvair 4 speed wouldn't shift easily through the gears until the gear oils warmed up...... sometimes that took forever because it was -20 degrees... I found that the Army had the same problems during WW II and that Kendal came out with a 80 - 90 - 140 gear lube to resolve the problem. It worked well in the old Vair and I have used it ever since in the one that is now restored. Haven't looked for it in the stores for the past 10 years, but if it is still available, it might be a good lube still today. I know that a lot has changed in the R & D of lubrication, so this product might not still be available. It was called Kendal 80/90/140 Three Star Gear Oil. Some people also added an oz of molybdenum disulfide to the gear oil if they still had shifting problems, but mind didn't need it...
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RaT_ I have to disagree with you. I use the Amsoil in my BX22 since it passes ALL Kubota, UDT (even SUDT) specifications.
I like Kubot but their oil is a rip off in my area. I can get a 100% synthetic with better fluid properties (pumping point-not freezing, etc) for less money. Until Kubot proves there oil is better for the same money, so long Kubot Fluid.
Plus I do not ever buy the warrenty "so-called" problems. Having an engine or hyd system fail due to fluid incorrect fluids is far and few between this days. Given you put in hyd fluid and not gear fluid.
I still do not like hyd fluid in front axle. That would be like putting hyd fluid in a solid front end? Even though this is a tractor application I still do not think hyd fluid gives the same protection, lowers friction, heat etc as a gear fluid would. Plus I know this is not the same in shock and pressure but there will be some in these axles.
So out with the old hyd fluid and in with the best 75-90 I could find. PLus the gear fluid helps more in the Northeast while the hyd fluid is still like half frozen honey.
I like Kubot but their oil is a rip off in my area. I can get a 100% synthetic with better fluid properties (pumping point-not freezing, etc) for less money. Until Kubot proves there oil is better for the same money, so long Kubot Fluid.
Plus I do not ever buy the warrenty "so-called" problems. Having an engine or hyd system fail due to fluid incorrect fluids is far and few between this days. Given you put in hyd fluid and not gear fluid.
I still do not like hyd fluid in front axle. That would be like putting hyd fluid in a solid front end? Even though this is a tractor application I still do not think hyd fluid gives the same protection, lowers friction, heat etc as a gear fluid would. Plus I know this is not the same in shock and pressure but there will be some in these axles.
So out with the old hyd fluid and in with the best 75-90 I could find. PLus the gear fluid helps more in the Northeast while the hyd fluid is still like half frozen honey.
My front axle has a simple straight gear and wouldn't require ep. I can think of several items that they don't use gear oil in like manual gear boxes, transfer cases and lawn mower transaxles. I think like i posted before 5w-30 is equiv. to 75w-90 10w30 is 80w-90, 140 is equiv. 50w and 250 is equiv. to 70w engine oils so 10w20 udt is equiv to 75w80 gear oil w/o extreme pressure additives?
I'd bet tractor fluid would have some type of shock cushioners you'd think since it goes in transmission and hydralics?
I still use 80w-90 in my axles though it leaks so i'll probaly got to 85w-140 since i can't find any synthetic gear oil in my neck of the woods besides pennzoil marine 75w-140 at wally world
I'd bet tractor fluid would have some type of shock cushioners you'd think since it goes in transmission and hydralics?
I still use 80w-90 in my axles though it leaks so i'll probaly got to 85w-140 since i can't find any synthetic gear oil in my neck of the woods besides pennzoil marine 75w-140 at wally world
neilw
Silver Member
TractorTeen
If you are considering the Super UDT check out Chevron's All Weather Synthetic Tractor Hydraulic Fluid THF. Last time I priced it it was $70.00/five gallon pail. Most Chevron distributes will order this for you in five gallon pails.
If you are considering the Super UDT check out Chevron's All Weather Synthetic Tractor Hydraulic Fluid THF. Last time I priced it it was $70.00/five gallon pail. Most Chevron distributes will order this for you in five gallon pails.
