Quote Originally Posted by erratic50 View Post
Just keep a good high detergent oil in it that's changed regularly and do normal maintenance like coolant flushes every 2-3 years, etc.

I am a firm believer in teflon treatments like Slick50 but you can over use them. I did - one treatment every 4000 miles unseated my rings after 14K. I had to treat it with borax to break the glaze and renew the ring's sealing ability. Gutsy move but it worked.

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For the past 3 years (since it once again became a DD ) I have been using Royal Purple HMX "High Mileage" synthetic oil and Ford Racing oil filter (kit from LMR). Over the 30+ years since I've owned the car, I know I did the slick50 thing a handful of times too but not recently.

-Eric