Morning gentlemen. I've got a D53A-17 Komatsu. The manual recommends 30w oil in the trans/torque converter. Is that still the best fluid for it? I think Komatsu calls it TO-30. I'm gonna clean the screen in the bottom and replace the filter and I just want to refill it with whatever is best. I seen some recommendations of using TO-4. Thanks in advance. Clyde
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