I haven’t read all the replies to the OP in this thread. I’m “jumping to the ”chase”. \
WHY? WHY’. WHY the G-D-Hell do people oppose using GENUINE KUBOTA fluids?
It just keeps popping-up...and is such a simple solution and such a GOOFY logic to do anything else.
DOH!
Geo - not to disagree with what you are trying to say ......... I understand perfectly! AND I am not opposing the use of any Kubota branded oils.........
But Kubota OIL - whether it is engine oil or hydraulic oil are not made by Kubota as you are well aware..... NOW I am going to stick with S-UDT2 oil in my BX25D - until it cost more to fill than I can afford.
But the engine oil ....... is nothing more than good ol Valvoline 10w-30 oil - nothing fancy about it - a great oil that is made by someone else in the oil business and the the bottle is changed in color and the label too and of course the cost just went up due to the orange logo.
A hydraulic oil is made according to the manufactures recommendation - so SINCE Kubota makes their own specific tranny and hydraulic mechanisms, they get to choose what is best for that specific system. Thus few other oil companies will make that oil exactly as Kubota calls for .........
now when it comes to engines - yes Kubota makes they engines .... and Yanmar makes their diesels and so on ........ but all those machines are the basically the same - different specs of course, but compression is more or less the same, and tolerances in the bearings are all the same.
And the kubota oil will make all of those engines purr purfectly !!!! However - as a person that does believe synthetics are a better oil ...... Kubota "oil" is not synthetic - nor does it have anything fancy in it to help a Kubota engine last longer - Where as - Mobil 1 and Amsoil both are synthetic and have been proven to be a more "better" oil by independent labs and others. Does Valvoline make a synthetic oil?
Sure they do - and I will bet you soon enough the good ol Kubota branded oils will be a synthetic blend or better yet a full synthetic just like they moved from the standard UDT - to the S-UDT (semi-synthetic) and now to the full synthetic S-UDT2 ......... I do not know a soul here that has said they would go back to UDT once they have S-UDT2 in their HST and hydraulics .....
Kubota oil is fine - but I have to travel 25 miles in one direction or 23 miles in the opposite direction to get it or order online and pay shipping .......... where as ol Wallyworld has 3 different engine oils - all for diesels .... all cheaper than Kubota's brand and maybe more importantly that store is 2.5 miles away.
Like you - I 'll stick with Kubota filters and hydraulic oils ..........engine oil I will not.