Bill

I recently rebuilt the Hydrostat trans in my GT2521 cub Cadet Garden Tractor after experiencing a stripped axle spline . The manual calls for 6 quarts of Cub Cadet "Drive System Plus" synthetic fluid which cost over $4 dollars per quart.

On the advice of a friend I substituted 10w30 "Mobil 1" synthetic automotive oil for less than half the cost with initially good results. However, I'm concerned with longterm durabiltiy.

Does anyone out there have any experience with using "Mobil 1" as a substitute for the factory Hydrostat fluid?

Bill

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speed

diesel_nut

I've heard all sorts of stuff.....ATF, Rotella, whatever. I use Cub fluid. They used it for some reason. They know more about it than me.

IH farm boy

a cub dealer said any good brand of 20w 50 synthetic oil will work . from what i have read anything diesel grade oils have retained more of there lubricating additives , than the gasoline counter parts . anything good in synthetic isnt cheap . i use alot of rotella synthetic and still 4 per quart

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nothing runs away like a deere! If it has tires, tracks, or propellers your goin to have problems .

cub cadet 70,73,100,1320,1640, david bradley plow and brinly hardley disk

phogbound

Let's see. Save a few dollars on oil, take a chance on a $800+ hydro transmission. Go for it! Let us know how it worked out after you put 500 or more hours on it.