API SN Plus is a supplemental standard to the API SN specification, which introduces oils for LSPI (Low Speed Pre-ignition) mitigation.
Recently, improvements in engine hardware and manufacturing technology have allowed the use of lower-viscosity grades in passenger car vehicles while maintaining engine durability. Additionally, the demand for better fuel economy has increased both end user and OEM interest in low viscosity engine lubricants. This has led to an increase in the use of 5W-20 and even 0W-20 viscosity grades over the thicker 10W-30 and 10W-40 grades. The trend to lower viscosities will continue with the introduction of a new viscosity grade in GF-6.
GF-6 is an automotive specification for PCMOs that is being developed by ILSAC. This specification is intended to increase fuel economy, enhance oil robustness and improve wear protection and emissions control.
Kaustav Sinha, global GF-6 project manager for Oronite, talks about performance drivers and challenges, new specifications, solutions and real world feedback at the 2017 Spring Independent Lubricant Manufacturers Association (ILMA) Management Forum in Carlsbad, California.
Oronite has already tasked its chemists and engineers with the work of meeting or exceeding industry and customer expectations for the implementation of GF-6 for passenger cars. If you would like more information about the background, status and timing of GF-6, please click below to read our articles.