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Showing content with the highest reputation on 03/11/2021 in all areas

  1. In fairness to your dealer, Ford does specify a 12 month oil change interval, in addition to the 10K mile alarm. In a hybrid, neither has a place. I did oil analysis throughout C-Max ownership. The data's attached. One change is early, at 12 months, and the last is extended to 2 years. There is a pattern of low and high water in the oil, with associated flash point depression. It is purely dependent on recent driving; after 100 miles at highway speeds, there's very little water in the oil. That's not true after a large number of short, low-speed trips where the ICE never gets hot. Ford has changed their tune. My new Escape will get ~15K miles on this oil change, because the Escape algorithm uses ICE on-time. Bov Oil Data 191105.pdf
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