Let's find out specifically what Kabota wants in the hydraulic system. I see some Kabota hydraulic oils with iso ve32 specification. Assumption on my part that is 32 weight oil which is common for some hydraulic systems.Slickwilly1976 wrote:I'm going to try the 80w90 and see if the whine stops
Yup. Good idea. Better to have the correct hydraulic fluid than to purchase and install 20 gallons of gear lub and find out that it's not correct. Then have to buy the correct fluid and dump the gear lube.Rudi wrote:Have you talked to a Kubota dealer at all? Might be worth a shot on the toll free if you don't have one close.