Bell TX-K not only meets API credentials, but also is also designed to meet the latest original equipment manufacturers (OEMs performance specifications in appropriate grades and base stocks - including Caterpillar, Cummins, Detroit Diesel, Mack, Renault, Volvo, Mercedes-Benz, MAN, and Ford. Bell TX-K also meets the self-certifying requirements of ACEA E9.
Bell TX-K are Advanced Heavy-Duty CK-4 Diesel Engine Oils that are specially designed to meet the new Proposed Category 11 (P...C-11) specifications for heavy-duty-vehicle. A new category is split into two separate and distinct subcategories: one that preserves historical heavy-duty oil criteria and one that provides additional fuel efficiency and economic benefits for modern diesel engine technology while maintaining durability. Bell TX-K improve engine performance that is being addressed include oxidation stability, shear stability and aeration.