ritcheyvs
Veteran Member
I'm approaching the 400 hour service on my DK45S, which includes changing hydraulic fluid according to the service manual. My local Walmart has Shell Spirax S4TXM in stock and the local Tractor supply has their usual stuff. What do TBN folks think/recommend? Is one oil significantly better than another? Does the oil really need to be changed? The DK45S has wet brakes and a wet clutches for PTO and 4WD but the rest is just gears and bearings.