Kubota mower gear box oil

[hunter2929]

What are you guys running ? And is anyone running 75-140 , if so why?

 

[dlundblad]

What model of machine and deck is it? Fluid type is likely deck specific.

My ZD1211 takes 10w30. My G5200’s and 1800 take 80w90.

 

[NiwradND]

I love polls, not sure what the specs are for the gearbox, if its 80w90 then 75w140 would be fine, Amsoil 75w110 would be my choice.

 

[hunter2929]

What model of machine and deck is it? Fluid type is likely deck specific.

My ZD1211 takes 10w30. My G5200’s and 1800 take 80w90.

It's a rck60 I think for my b2920, spec is 80/90 but some people use other oils, that's what I'm asking about.

 

[hunter2929]

I love polls, not sure what the specs are for the gearbox, if its 80w90 then 75w140 would be fine, Amsoil 75w110 would be my choice.

Thanks

 

[Dutchy491]

I use Amsoil SG 75w110 in mine, since new

 

[Saturnguy]

Mobil 1 Delvac 50, 90W gear oil

https://www.mobil.ca/en-ca/lubrican...products/mobil-delvac-1-transmission-fluid-50

 

[hunter2929]

Mobil 1 Delvac 50, 90W gear oil

https://www.mobil.ca/en-ca/lubrican...products/mobil-delvac-1-transmission-fluid-50

Interesting, thanks

 

[hunter2929]

So someone told me switching to synthetic after years of dino could cause the seals to shrink, true???

 

[Rand]

So someone told me switching to synthetic after years of dino could cause the seals to shrink, true???

No. But if they are crusty and in bad shape they could clean up and start leaking.

 

[JTK]

I suppose if she's a little leaky 75w140 might stay in that gearbox longer. Based on other owners, I believe it's 80w90 in the gear box for the 54" mid mount mower on my TYM T224. The 55 page owner's manual for the mowing deck says nothing other than "check gear oil" at ~50hr intervals. Main thing is that there is a decent level of some type of gear oil in there.

 

[Elkins45]

When the seal failed on my King Kutter gearbox and dumped all the oil I filled it with this.

https://www.tractorsupply.com/tsc/product/super-s-cotton-picker-spindle-grease-00-1056828

That was five seasons ago and it still works fine.

 

[dlundblad]

It's a rck60 I think for my b2920, spec is 80/90 but some people use other oils, that's what I'm asking about.

I can’t see either or making much of a difference personally. Keep it topped off and run it.

 

[hunter2929]

When the seal failed on my King Kutter gearbox and dumped all the oil I filled it with this.

View attachment 318270

https://www.tractorsupply.com/tsc/product/super-s-cotton-picker-spindle-grease-00-1056828

That was five seasons ago and it still works fine.

Thanks for posting this, I heard people talking about it.

 

[Fabulous50s]

Mobil 1 Delvac 50, 90W gear oil

https://www.mobil.ca/en-ca/lubrican...products/mobil-delvac-1-transmission-fluid-50

50 is generally a manual transmission fluid. Id go a different route for a bevel gear box.

 

[Fabulous50s]

So someone told me switching to synthetic after years of dino could cause the seals to shrink, true???

Never had that happen. And ive run synthetic in just about every engine/gearbox I own. Some of which are 60+ years old.