Shell will also be introducing a Shell Rotella T6 Multi-Vehicle 5W-30, which will meet API CK-4 and API SN standards, allowing its use in both diesel and gasoline engines.

Years of work in the lab and millions of miles of road testing has culminated in three new Rotella engine oils formulated to meet the API CK-4 and FA-4 oil-service categories that will start ...

Figure 1: Schematic of shell effects. Figure 2: Experimental configuration and low-temperature superconducting properties of single, isolated Pb and Sn nanoparticles: observation of shell effects ...