I see no discrepancy, as soon as they developed the additive that would take the pressures of heavy loads on gears, it was 10 wt oil and additive. Then HY-Tran was developed and superceded the 10 wt with additive. They never go back and update original operator manuals so they will tell you what was recommended at the time the book was written. Gear lube was no longer to be used in tractors with a Torque Amplifier. This was all covered in service bulletins which are privy to dealers and they pass the information onto customers if deemed necessary.
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Today's Featured Article - Identifying Tractor Noises - by Curtis Von Fange. Listening To Your Tractor : Part 3 - In this series we are continuing to learn the fine art of listening to our tractor in hopes of keeping it running longer. One particularly important facet is to hear and identify the particular noises that our
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