The development phase of the new PC-11 engine oil performance category is well underway. As a recap, the next generation of HD engine oils will have two subcategories: 1) a standard 15W-40 for older engines, and 2) a low-viscosity category for the new fuel-efficient, low-carbon dioxide emission engines coming in 2016. Oil viscosity is a significant contributor to the fuel efficiency of an engine, and the new engines will use 5W-30 and 10W-30 HD engine oils for both factory and service fills. Additionally, PC-11 will feature several new performance attributes including better shear stability, oxidation stability, and improved biodiesel compatibility.
New engine tests proposed for PC-11 are now in the development phase. This process involves the design and testing of the new engines, and then refining the performance specifications of each test based on multiple runs of passing and failing reference oils. Once this process has been completed, a matrix of tests will be performed at a number of locations to validate the results and will generate rigorous statistical data which will form the basis of the end specifications. This matrix testing is expected to commence by early 2014.
Castrol’s Global Lubricants Technology team continues to work closely with our additive technology partners to help refine and shape the next generation of high-performance heavy duty lubricants.