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AC720 oils?
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Herb(GA) View Drop Down
Orange Level Access
Orange Level Access


Joined: 15 Sep 2009
Location: United States
Points: 1036 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Herb(GA) Quote  Post ReplyReply Direct Link To This Post Topic: AC720 oils?
    Posted: 30 Apr 2021 at 7:52am
I have enjoyed my 'new to me' AC720; need to change oils. What do I use: 
air cooled Onan engine? 
hydrostat?
dropped rear axle?
hydraulic lift?
Herb(GA)
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Bird76Mojo View Drop Down
Silver Level
Silver Level


Joined: 12 Mar 2015
Location: Illinois
Points: 221 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Bird76Mojo Quote  Post ReplyReply Direct Link To This Post Posted: 02 May 2021 at 5:29pm
-I use sae30wt in my Onan CCKB with a Purolator L20195 filter.
-I use cheap Rural King brand Dex/Merc (by the gallon jug) in the hydrostat with a Napa/WIX 51085 filter, but you could use Type F transmission fluid as well.
-I use straight 90wt gear oil in the drop boxes.

The hydrostat, lift system, and transmission all share the same oil.
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Herb(GA) View Drop Down
Orange Level Access
Orange Level Access


Joined: 15 Sep 2009
Location: United States
Points: 1036 		Post Options Post Options   Thanks (1) Thanks(1)   Quote Herb(GA) Quote  Post ReplyReply Direct Link To This Post Posted: 09 May 2021 at 6:51pm
Bird76Mojo,  Thank You.  Herb(GA)
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