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which engine oil for NAA

260 Views 2 Replies 3 Participants Last post by  BigDaveinKY
which oil should be used in my NAA? Thanks
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15w-40 is much better than what was available when the tractor was built. I prefer conventional over synthetic or blends in these old machines. Ford Golden Jubilee NAA tractor engine information

Engine oil is one of the most subjective things about old tractors. From what Ford originally specified in the link above, I would use 10w-30 in that engine here in the middle of KY.
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