10w30 in summer.

[Rglossip]

Kubota allows 10w30 year round regardless of temps. Will it hold up to the heat? Mobil delvac extreme

 

[heynow]

Do you have reason to believe it won't?

 

[Chris142]

Whole bunch of 18 wheelers are running around on 10w30 pulling 80000lbs or more.

 

[krismoriah72]

I would think 5w40 would be a better 'year round' oil.

 

[Rglossip]

It is not an approved viscosity in my Kubota or I would be all over it.Dealer said it would void my warranty.

 

[Rglossip]

Worried the thinner oil would not give the best protection .Really not very educated about the subject which is why I am here.

 

[buster]

I like 10w30's for their low volatility and lack of VII's (less deposits). Like my truck, they are going extinct.

 

[Rglossip]

I noticed that but OCD sucks!

 

[geeman789]

Originally Posted by Rglossip


It is not an approved viscosity in my Kubota or I would be all over it. Dealer said it would void my warranty.



So what are the APPROVED viscosity's, besides 10w30 ?

 

[Rglossip]

I noticed that but OCD sucks!

 

[JMJNet]

Sounds like that is your only choice.
If you are learning, why don't you read.
With a lot of knowledge in this forum and others, the information is readily available.

 

[Rglossip]

15w40 and 30w above 15 degrees. 10w30 covers the full temp spectrum according to Kubota . I was curious what bitom guys think about the subject.

 

[Rglossip]

That's why I am here!

 

[Bud]

Originally Posted by Rglossip
That's why I am here!


You sometimes need a thick skin to be here.

 

[JLTD]

10w-30? Summer?

You're golden.

 

[A_Harman]

Originally Posted by Rglossip
Kubota allows 10w30 year round regardless of temps. Will it hold up to the heat? Mobil delvac extreme


Definitely.

 

[Gebo]

Originally Posted by buster
I like 10w30's for their low volatility and lack of VII's (less deposits). Like my truck, they are going extinct.



I'm with you..sorta like me...going extinct...

 

[Rglossip]

That's why I am here!

 

[tundraotto]

Kubota says you can - and it probably will, except after it shears in hard use to 10W-20....then in the heat under max load - I don't know. How quickly that will happen in your use? Maybe not before you change it, but I do know that the approved 15W-40 will resist shearing down for longer.

 

[bullwinkle]

If you use it in winter, then 10W30. If you only use it in warm weather (at least 32F & above), then 15W40 or straight 30. In my experience 5W40 (esp. T6) seems to shear faster than any of the others mentioned, that's likely why Kubota won't recommend it.