What is ILSAC GF-6? And What is the Difference Between GF-6A and GF-6B?
The International Lubricant Standardization and Approval Committee (ILSAC) recently set a new precedent in the passenger-car motor oil market by splitting its specification into two parts. GF-6A will be backward compatible to provide adequate protection for both older new engine technologies. GF-6B will not be backward compatible and applies only to select new vehicles moving forward. Both versions of the specification have a focus on wear protection, prevention of low-speed pre-ignition (LSPI) and improved engine cleanliness. However, GF-6B will have a more stringent test for fuel economy. Engine oils can easily be identified as ILSAC GF-6A or 6B by the API emblem on the front label of the packaging. A shield will represent the GF-6B specification while the traditional starburst will indicate a GF-6A product. Both ILSAC specifications will also meet the industry-standard API SP specification which is most commonly found in owner’s manuals.