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FA-4 Oil: How Well Does It Really Protect Heavy-Duty Truck Engines?

Feb. 23, 2021

Over three years ago, the American Petroleum Institute (API) released the FA-4 engine oil spec. While lubricant manufacturers stand behind the benefits of FA-4, some fleets are debating whether to switch due to slow OEM adoption and concerns about engine protection with lower viscosity oils.

In this Executive Summary of a Webinar from late 2020, read about what Tony Negri, Commercial Products Manager for Phillips 66 Lubricants, and Shawn Ewing, Team Lead, Field Technical Services for Phillips 66 Lubricants, had to say about their findings from tests they conducted demonstrating the safety and performance of FA-4 products.