John Deere 820 Black Dash

Bill,

I run 15W40 Rotella in everything except my autos. My 80 has a crankcase total capacity of 15 quarts, not too much difference between the 80 and 820 as far as answering your question is concerned.
 

Bill,

buy a 20l drum and you will have under half left.

Filters are still available from JD, dont forget to get a new rubber ring while you are there! There are two drain points, one next to the filter housing, one in the timing gear case on the flywheel side.

I am using Smith and Allen Ultra HD 15-40 in my 830.
 
I have a friend in France told me about 2 466 motors ruined to the Deere plus 50 oil. It cleans the engine and all the sludge gets stuck on the screen. So make sure not to use too detergent oil or use a good rinsing product.
 

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