Karin Haumann

Karin Haumann, the OEM Technical Manager for Shell Rotella and chair of the API New Category development team, dives into the future of heavy-duty engine oils. She discusses the upcoming PC-12 specification, designed to enhance engine reliability and performance while meeting stricter EPA emissions rules. Karin explains how the transition from older oil categories like CK-4 and FA-4 will improve thermal resistance and elongate oil change intervals by potentially 10–15,000 miles. She shares insights on industry collaboration and the critical importance of careful inventory planning during this rollout.