I accidentally came across this observation when I purchased some Prestone Dexcool for my 2008 Chev Suburban. On the back of the jug, it showed a chart of the years that Prestone recommended their Dexcool for GM, Chrysler and Ford products. In 2018 Ford switched to their yellow coolant and now Prestone recommends their 10 year All Vehicles coolant for 2018 onward Ford products. I also checked a Ford forum for some additional tips on it. For the Ford fans, enjoy. I’ll rely on the coolant experts to discuss the OAT, and POAT, etc issues. The opinions on the Ford forum are not necessarily fact checked AFAIK.
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