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raymond ward, washington, PA, 1959 desoto firesweep sportsman 361

hi rick. i have recently purchased a 1959 desoto 2 dr with a361 2-bbl in pretty nice shape. runs and drives great. my question is shouldi use detergent oil? the previous owner owned the car from 1968-2010 and hetold me he used 30 non detergent. opinions on this vary and i would like toknow what you think.

Ray-

Absolutely, positively detergent, as in ANY engine with a full-flow filter.Always. Only. You might consider running a can of sludge flush through itjust before you change the oil.

Rick

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