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Latest Allison approved fluids:
https://www.allisontransmission.com/parts-service/approved-fluids/on-highway-fluids
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My Bus has the Dex/Merc Dexron III. i am looking for the capacity of my transmission. I fully drained the pan, added 1 gallon and it is showing on the cold mark on the dipstick which can’t be right. I have always been suspect of this dipstick. I have a 6″ pan and I found this online, not sure if it correct or not that is why i was intrigued by Jon’s method.
2000 Featherlite H3-45
2024 Jeep Grand Cherokee
Leesburg, FL -
When i drained it i carefully poured all the oil into 1 gallon jugs and I got 6 1/2 gallons. Seems like i might have been a gallon short?
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What about the filters? They may hold some fluid in those chambers also…
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Jerry if you look at my chart at the bottom it states does not include externals
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The Wanderlodge guys are super helpful with this kind of stuff, The concensus over there is 8 gallons is required, 7 1/2 in the pan and 1/2 gallon for the filter.
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