To help reduce
emissions, some four-stroke marine engines are now equipped with exhaust
aftertreatment devices. To stay on top of this latest technology, AMSOIL
recently upgraded the Formula 4-Stroke Marine Synthetic Motor Oil (WCT, WCF) formulation to make it catalyst compatible. Its packaging now
includes the new FC-W Catalyst Compatible logo and corresponding certification
number (FC-00358P [WCT], FC-00357P [WCF]). The formulation is backward-compatible,
continuing to provide outstanding protection where FC-W oils are recommended.
Formula 4-Stroke Marine Oil now also meets API SM qualifications. Its pricing
remains unchanged.