Lower-viscosity engine oil formulations have been available in the heavy-duty trucking marketplace for nearly six years. Despite some attractive fuel economy benefits that these lower-viscosity formulations provide, they maintain just a slim market share among all available formulations. Why is this the case? It’s been shown that Class 8 over-the-road fleets can realistically expect fuel
Diesel fuel contains sulfur, which derives from the original crude oil source and can still be present after refining.
For both API CK-4 and FA-4, the same updated standards for performance with regard to engine protection and durability, and other key oil properties such as resistance to oxidation and aeration, were required to be proven using industry protocols to gain the ability to license oils to the new categories. The only difference between the
Formulated to solve heavy-duty diesel challenges, API FA-4 lubricants allow for further fuel economy gains due to high-temperature, high-shear (HTHS) low viscosity oils—meaning that they have less resistance to flow between engine parts moving at high speeds in elevated operating temperatures. With this move to low HTHS viscosity levels, new additive technology is essential to
With a year of the new American Petroleum Institute (API) CK-4 and FA-4 oil categories under the industry’s belt, you have, most likely, switched your fleet over to the CK-4 formulation, as that was the engine OEM-approved backward compatible formula. The transition to FA-4 formulations for 2017 engines, on the other hand, has been a
Fleet Equipment‘s talked a lot about engine oil recently—and with good reason. After all, new engine oil categories (FA-4 and CK-4) will be in place on Dec. 1, and there is no shortage of questions: Which oils are compatible with which engines? How will this impact fuel efficiency? How will older engines benefit from these new oils? These and
Change is coming to the heavy-duty industry in a big way. In February, the Proposed Category 11 (PC-11) engine oils were approved and two new diesel engine oils were born: API CK-4 and API FA-4. This December, those two oils will replace the traditional CJ-4 oils and bring along a host of benefits. There is