I have been using Five Point (farm store distributor oil) transmission/hydraulic oil for years and have had good luck with it in a wet brake/clutch tractor. Local farm store is getting higher priced every year. Another common farm store in Iowa sells Harvest King which is advertized to be a premium oil. It also is labled for all common tractor manufactures for tractors with wet brakes. It runs an easy $10 cheaper per pail over the Five Point. Finely, is anyone using the yellow bucket transmission/hydraulic oil??? It is running about $20 a bucket cheaper than than the Five Point. Are all of these transmission/hyd. oils OK?????? Are they as good as Inernational Harvestor Hy-tran???? What about using a cheaper oil and changing it more often? Just looking for thoughts/opinions/experiences before I make any changes. Thanks