I recommend my customers use a premium universal tractor transmission/hydraulic fluid. I sell Mahindra fluid as well as Troco brand that is a little less expensive(selling it for 40 years) but just as good IMO. Buying a tractor is a large investment, it bewilders me that someone will risk it trying to save 25 bucks. If my customers want to save money I have no problem with it but just beware that bucket of bargin oil may be the most expensive one they ever buy.