Super S Premium Hydraulic Tractor Fluid
- Thread starter grm61
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rider7767
Platinum Member
It looks right for my CK20S. The list was last updated in 2012. How new is your tractor? That may be why they locked this out. It is incomplete. It looks good over all.
rider7767
Platinum Member
OP
grm61
Platinum Member
I called Napa, they said their hyd oils come in a 10, 20, or 30wt, not a multi weight 10-30 like our tractors call for.
I looked at the napa premium hydrulic tractor fluid sheet online, it has pour points etc, but no information as to whether it is a 10-30 or a 30 etc.
rider7767
Platinum Member
grm61,
According to my NAPA guy, "NAPA premium Hydraulic Fluid" has a base oil of 10W30 plus additives. All testing were done by American Society for Testing and Materials standards. Many house brands say they meet OEM standards, but are not tested. This is one of the reasons I use NAPA oils.
Viscosity by ASTM D 445:10W-30
cSt at 40°C (104°F) 58.00
cSt at 100°C (212°F) 9.43
Pour Point (°C):by ASTM D 97 -32
API Gravity 31.3
Boiling Point: Not determined. Expected to be > 260°C (500°F).
Specific Gravity @ 15.6oC 0.8692
Density @ 15.6oC 7.237
These Specs meet or exceed our tractors requirements. Make sure it is the Premium. I am not sure what the standard fluid is. I just did my 50 hour service on and change the Hydraulic oil with no performance change to the tractor. I used the Premium oil in my last tractor without incident also.
Also, according material safety data sheet (MSDS) which is a legal document filed with DOT and the EPA, it is 10W30. There are not any real multi weight oils, only multi viscosity oils. 10W 30 is still 10 weight oil with additives which keep it from loosing its viscosity at higher temps. 30W starts out thicker, but thins when the oil reaches operational temps. It does not protect as well while it is cold and It may not get into all the small spaces. This why multi viscosity oils have become so popular. Now they are using 5W20, 0W20, etc.
Now having said all of that, It seems to work well, but I am not any oil specialist. I may never notice the different, because it only gets in the single digits for 3 or 4 days a year. Average winter temps are about 40 degrees.
Post your thoughts, because I learn more by listen to you guys than can ever be taught in a class.
OP
grm61
Platinum Member
Thank you Tony, where did you find where it said 10w30?
And is this Premium Hydrualic Fluid or Premium Tractor Fluid?
Its got to have the additives for transmissions and wet brakes.
I would gladly use it if it is the right stuff.
Thanks for your help, we do have a couple Napa stores, in nearby towns, nobody carries the fluids in the manual.
The other brands at the auto parts stores are a strait 30.
And is this Premium Hydrualic Fluid or Premium Tractor Fluid?
Its got to have the additives for transmissions and wet brakes.
I would gladly use it if it is the right stuff.
Thanks for your help, we do have a couple Napa stores, in nearby towns, nobody carries the fluids in the manual.
The other brands at the auto parts stores are a strait 30.
rider7767
Platinum Member
It is on the MSDS plus I read it somewhere in my research. I used Mobilfluid 424 as my reference product to match specs. I can't find anything on it that said what its base oil is. I read online it is 10W20 Mobilfluid 424 is one of the list oils for Kioti, but it is hard to find so that is why I used it to match specs. My NAPA had to order their premium. See Attachment below pictures. 
Last edited:
OP
grm61
Platinum Member
Thankyou:thumbsup:
The bucket has the part number on it, so I was able to find the sheet, it states it is a 10w30. Section 9 http://s7d9.scene7.com/is/content/GenuinePartsCompany/1581500pdf?$PDF$
Thanks alot.
Greg
The bucket has the part number on it, so I was able to find the sheet, it states it is a 10w30. Section 9 http://s7d9.scene7.com/is/content/GenuinePartsCompany/1581500pdf?$PDF$
Thanks alot.
Greg
rider7767
Platinum Member
Greg,
Like wrote in an earlier post. It is not the cheapest or the most expensive, but it is a good product. The best thing is you can get it. I used the reserve system online, and my oil was waiting for me the next day at my NAPA store.