50/50 mix PP 5W-20/30. 24% remaining oil life (not reset after change at 1,000 miles). 202 hours total/ 58 hours idle this interval. 350 miles (est) towing 6,000# boat/trailer. Motorcraft filter.
Should be good for a one year, 6,000 mile interval.
Hopefully the Manganese will trend down with wear-in. (These engines apparently do have Manganese/Bronze valve guides.) Blackstone's "universal averages" suggest 6 ppm on a 5,900 run per a UOA from a Mustang forum.
(FWIW, I think Sample #3 viscosity was incorrect as my 50/50 mix should have been around 9.2 cSt @ 100°C at start.)
Should be good for a one year, 6,000 mile interval.
Hopefully the Manganese will trend down with wear-in. (These engines apparently do have Manganese/Bronze valve guides.) Blackstone's "universal averages" suggest 6 ppm on a 5,900 run per a UOA from a Mustang forum.
(FWIW, I think Sample #3 viscosity was incorrect as my 50/50 mix should have been around 9.2 cSt @ 100°C at start.)
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