My opinion, so take it for what it's worth. The 303 was the designation used by John Deere for many years. Maybe still do, but the 303 seems to have become more or less generic for hydraulic fluid. I am using 303 in the live hydraulics system I installed on my M, and it performs just fine. My opinion again, but I really don't think there is much difference at all between 303 and Hy-Tran. If I owned a newer tractor still under warranty, and it called for Hy-Tran, then that is definitely what I would use. A tractor built in 1975? I think I would use the 303.
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Today's Featured Article - Tractor Profile: Allis-Chalmers Model G - by Staff. The first Allis-Chalmers Model G was produced in 1948 in Gasden, Alabama, and was designed for vegetable gardeners, small farms and landscape businesses. It is a small compact tractor that came with a complete line of implements especially tailored for its unique design. It featured a rear-mounted Continental N62 four-cylinder engine with a 2-3/8 x 3-1/2 inch bore and stroke. The rear-mounted engine provided traction for the rear wheels while at the same time gave the tractor operator a gre
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