Heavy-duty: ACT Expo opens registration
By now, you’ve probably heard about the new heavy-duty engine oil categories that will replace the CJ-4 oils come December 1st. The first category, API CK-4 will be compatible with all engines and offer increased efficiency over the old CJ-4 category. The new category – API FA-4 – offers additional efficiency gains in 2017 model year engines, but the question of backward compatibility remains. For clarity on the categories, I visited with Lubrizol’s Paul Basar and Andy Jung, who outlined the top three things fleet managers need to know about the new oil categories.