Ford Motor Company has officially approved three Shell Rotella diesel oils for use in its Super Duty trucks that comply with the API CK-4 specification.
Ford Offers CK-4 Alternative Oil for Super Duty Diesels
Ford is recommending the use of a new Motorcraft diesel engine oil for its Super Duty trucks and warning fleet and commercial customers to avoid using most new CK-4 or FA-4 oils because they may cause damage to the engine, the company told AutomotiveFleet.com.
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