puradyn filters
I installed a puradyn filter on my 7.3. Easy install, only 2 hoses and one electrical line. The filter has an additive package that keeps the viscosity tbn tan all at new specs. I ran 30,000 miles on my first filter and the OA came back just about like new oil. On my second filter now. IMHO puradyn is the better of the oil bypass filters.
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