Equipment World Digital Magazine
Issue link: http://read.dmtmag.com/i/652983
March 2016 | EquipmentWorld.com 64 maintenance | continued To order, call (800) 430-4540 or visit www.equipmentworld.com/roady-order-form Email: roady@equipmentworld.com Roady_EW_halfpage_EW0415.indd 1 3/25/15 8:52 AM for heavy-duty engine oil are the total base number depletion and the oxidation number. "There used to be a third consideration – soot levels in the engine," he says. "That is becom- ing less important as diesel exhaust emissions systems have improved." Pre-2010 engines required frequent drains because they produced more soot due to increased exhaust gas recirculation. But, soot control has been addressed by improvements in CJ-4 oils and the advent of cleaner ultra- low-sulfur diesel fuel. New 2017 engines will run 5 to 15 degrees hotter than today's engines. "We have to make sure that when the new oil gets hot, it doesn't break down," Whitacre says. Oil makers have taken that into consider- ation, as well as the need for compatibility with existing engine systems, says Jonathan Sheumaker, technical adviser for liquid filtra- tion research and technology at Cummins Filtration. "There should be no impact on the filter, PC-II AT A GLANCE T wo types of PC-11 oils will be introduced: PC-11A, which will have the official designa- tion CK-4; and PC-11B, which will have the official designation FA-4. PC-11A (CK-4) oils will replace today's lubricants and will be completely backwards-compatible with all current vehicles. They will be designed with im- proved oxidation resistance, shear stability and aeration control. PC-11B (FA-4) oils will meet these new require- ments, and include lower- viscosity grades designed for next-generation diesel engines to help maximize fuel economy without sacrificing engine protec- tion. These oils will have limited backwards compat- ibility, because some older engines were not designed to operate with lower- viscosity grades. The improved perfor- mance for both PC-11A (CK-4) and PC-11B (FA-4) will be the same. The split in the category will define viscosity grades. First new heavy-duty engine oil category in 10 years. PC-11 oils will be available Dec. 1.