Hydralic fluid for a Hesston 70-66

Dziadzu · Nov 13, 2022

After replacing some lift arm seals on my Hesston 70-66, I must replenish the hydraulic fluid. Manual calls for API 303 hydraulic but I have heard that's not the way to go. What should I use?

Janicholson · Nov 13, 2022

Mobil Delvac is a superior fluid that is far superior to the 303 that was in it. I recommend changing as much of the existing fluid as you can. some is bound to remain, but they will blend OK. Jim
My recommendation

Hydralic fluid for a Hesston 70-66

Dziadzu

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Janicholson

Well-known Member

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