Can I Use 5W 30 In Ford Fiesta?
Can I Use 5W 30 In Ford Fiesta? Can I use 5W 30 in Ford Fiesta? Registered. A Ford dealer will probably use Ford Motorcraft oil or Ford Castrol Magnatec, much depends on the dealer but to be fair any oil that conforms to Ford Spec 5w-20 (WSS-M2C948-B) or 5w-30 (WSS-M2C913-C) as an alternative should