Engine Oil change away from KUbota brand?

   / Engine Oil change away from KUbota brand? #1  

TWD

Gold Member
Joined
Jul 18, 2010
Messages
330
Location
Sierra Nevada Mountains - CA
Tractor
Kubota M59
Anyone switched from the Kubota Brand oil 15w40 to T6 5w40?

I noticed my jugs of kubota 15w40 over the last few years are not identical oil types anymore so I'm not sure what may have changed... but I did notice when it's < 45*F it's noticeably rougher starting.

I have T6 5w40 on hand already as I use it in various other engines... thoughts? experiences ?
 
   / Engine Oil change away from KUbota brand? #2  
Anyone switched from the Kubota Brand oil 15w40 to T6 5w40?

I noticed my jugs of kubota 15w40 over the last few years are not identical oil types anymore so I'm not sure what may have changed... but I did notice when it's < 45*F it's noticeably rougher starting.

I have T6 5w40 on hand already as I use it in various other engines... thoughts? experiences ?
What does your owners manual say for winter operating temperatures? that's the first place to look.
 
   / Engine Oil change away from KUbota brand? #3  
I use T6 Rotella 5W-40 in my L3830GST and my RTV1120 because I use them year around. My ZD326 gets T6 in 15W-40 as it’s warm weather use only.
 
   / Engine Oil change away from KUbota brand? #4  
Use the T6, your Kubota will thank you.
 
   / Engine Oil change away from KUbota brand? #5  
All my diesels run T6 5w-40, 2 Kubota's and its a marked improvement on cold start.
 
   / Engine Oil change away from KUbota brand? #6  
For engine oil I buy what's on sale - 20L pails of T6 work great
 
   / Engine Oil change away from KUbota brand? #7  
T6 is all I run in both my Kubota diesels, as well as several other small engines
 
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   / Engine Oil change away from KUbota brand? #8  
Whatever oil meets the tractor specifications.

Different brands of oil are all bottled on the same production line.
 
   / Engine Oil change away from KUbota brand? #9  
Kubota seems very restrictive in my owner's manual. But on their web site they clarify that weights over than 10-30 or 15-40 can be used:

Kubota | Lubricant & Grease Maintenance Schedule

I switched my tractor to 5-40 and it's doing fine. Have not had a cold start yet but I now keep a small milkhouse type electric heater in the garage anyway.
 
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   / Engine Oil change away from KUbota brand? #10  
Anyone switched from the Kubota Brand oil 15w40 to T6 5w40?

I noticed my jugs of kubota 15w40 over the last few years are not identical oil types anymore so I'm not sure what may have changed... but I did notice when it's < 45*F it's noticeably rougher starting.

I have T6 5w40 on hand already as I use it in various other engines... thoughts? experiences ?
I use that oil in my Dodge Cummins motor and cold weather operations are much better. IDK about small Diesel engines but I’ve been tempted to run it in my tractor.
 
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