] What does bother me is that Ford Ecoboost turbo engines only spec dino conventional, and Hyundai turbos too, others I'm sure. Its true this stuff survives 'OK', yet I have to think more deposits and coking occurs with dino choices. [/quote]
Car manufacturers will recommend anything to be competitible on a new car market. Cheaper oil,cheaper maintenance over all. They know engine will be good unti warranty runs out. Is Ford a strong player among fleet buyers? If so there is your answer. In Europe Alfa Romeo did same thing in the late 1990s early 2000s with their Twin Spark engines. They recommended 20k km OCI with only 10w-40 oil,and cambelt change every 120k km.Result: a lot of bottom end failures and a lot of bent valves.Cars that was running shorter OCI and 60k km cambelt change drive to this day with no problems. And this 20k oil and 120k belt was only to compete better with chain driven BMW for the fleet buyers as FIAT admitted later on.
Car manufacturers will recommend anything to be competitible on a new car market. Cheaper oil,cheaper maintenance over all. They know engine will be good unti warranty runs out. Is Ford a strong player among fleet buyers? If so there is your answer. In Europe Alfa Romeo did same thing in the late 1990s early 2000s with their Twin Spark engines. They recommended 20k km OCI with only 10w-40 oil,and cambelt change every 120k km.Result: a lot of bottom end failures and a lot of bent valves.Cars that was running shorter OCI and 60k km cambelt change drive to this day with no problems. And this 20k oil and 120k belt was only to compete better with chain driven BMW for the fleet buyers as FIAT admitted later on.
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