To be honest I have not been able to unravel the conveludid tale of what New Holland actually wants in their machines. When we bought our used 2022 C332 from the dealer we were given an older 2019 publication of the Operations manual I remember it did have 10W-30 CK-4 oil listed for Hydraulic fluid. I then got a newer Operations manual February 2022 PN 91788716 and 10W-30 can not be found in the manual outside of engine oil selection due to temperature environment. The newer manual has 3 listings:
Premium Hydraulic Oil HV68 Multi-Grade AW (-15°C to 46°C)
Premium Hydraulic Oil HV46 Multi-Grade AW (-35°C to 38°C)
Engine Oil SAE 0W-40 CK-4 Full-Synthetic (-30°C to 46°C)
You will note the absence of 10W-30 CK-4 oil.
At the parts counter I asked for Hydraulic oil for our machine and was given 'CNH Hydraulic Transmission Oil Premium' this oil only says 'MAT Spec Approved'. When I asked are you sure this is approved for use in our machine the parts person said that the regional service manager told them that it was better than the above choices. He the regional manager did not say approved just better. My parts person was emphasizing the 'MAT Spec Approved', then the logic would be any MAT spec approved fluid could go anywhere engine and or hydraulics. I believe CNH needs to educate their dealerships on exactly what MAT approval means.
What I have not been able to obtain is any documentation to verify that 'CNH Hydraulic Transmission Oil Premium' is approved for use in our machine either from CNH corporate or the dealership.
We used to have a saying in the Nuclear industry that "if is not written down than it does not exist".
I called another dealership gave them my PIN and almost immediately told they use 10W-30 CK-4 engine oil. If we brought the machine in that is what they would use. When I pressed the person on why they would not use the HV68 or 0W-40 the person stated that is what we use.
So we will be returning the 15 gallons of transmission oil and buying 15 gallons of the HV68. The 0W-40 FS is too costly.
CNH Rodchester does have a web page
This is a guide to lookup New Holland fluids used on all machinery. You can also use this guide to lookup fluids for other brands as well, such as John Deere, Case IH, Kubota, etc. This resource serves as a supplement to our original fluids and filter guide.
www.newhollandrochester.com
that is somewhat convenient for determining what types of fluids you need.
For those of you who noted that the only difference between the 10W-30 and 0W-40 oil would be temperature operability congratulations but why the move to Full Synthetic. There has to be a reason let us know why.