Preparing Your Fleet for PC-12: Understanding the Next Heavy-Duty Oil Category
October 29, 2026
Time: 2:00 PM ET | 1:00 PM CT | 11:00 AM PT
Duration: 60 minutes
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Summary
The heavy-duty engine oil industry is preparing for its next significant performance upgrade with the introduction of API CL-4 and API-FB-4. Developed to support evolving engine technologies, improve performance, and meet the demands of increasingly stringent operating conditions, this upgrade will deliver value to fleets, maintenance professionals, and equipment owners.
Join industry experts as they break down what the new category means, why it is being introduced, and how fleet maintenance professionals can prepare for a smooth transition. Attendees will gain practical insight into the implementation timeline, equipment compatibility considerations, and key actions that can help minimize disruption while maximizing fleet reliability.
Learning Objectives:
- Why the heavy-duty engine oil category is transitioning from API CK-4/FA-4 to API CL-4/FB-4 and the industry drivers behind the change.
- What performance improvements and new requirements are expected with this new category.
- How the transition may affect fleet maintenance practices, lubricant selection, inventory planning, and service operations.
- What fleet managers and maintenance leaders should be doing now to prepare for implementation in 2027.
Speakers
Shawn Whitacre
Senior Engineer
Lubricants Technology
Shawn Whitacre’s career spans 28 years focused exclusively on research and engineering dealing with heavy-duty engine lubricants, fuels, emissions, and materials. Before joining Chevron in 2013, he spent 12 years leading global fluids and materials engineering activities for Cummins. He also spent five years conducting lubricant, fuel, and emission research for the Department of Energy’s National Renewable Energy Laboratory in Golden, CO. At Chevron, he is a Principal Engineer primarily responsible for product formulation of the Delo Brand of Heavy Duty Engine Oils. Whitacre is the chairman of the ASTM Heavy-Duty Engine Oil Classification Panel, which was tasked with the final development of the API CK-4 and FA-4 specifications that took effect in late 2016.
Kerri McDonald
Sector Manager for Commercial Lubricants
Chevron
Kerri McDonald is the Sector Manager for Commercial Lubricants at Chevron, bringing more than 25 years of sales and marketing experience. She holds an MBA and has spent approximately 15 years within Chevron's lubricants organization in roles spanning sales, marketing, channel strategy, and business consulting. Kerri leverages her broad industry expertise across both commercial and consumer segments to drive growth, strengthen customer partnerships, and deliver strategic value to customers and channel partners.
