Diesel demand is proving resilient in 2025—and so is the need for heavy-duty engine oils that protect, perform, and deliver results. As fleets and distributors begin planning for the second half of the year, Phillips 66 is here to help you navigate market conditions and align your strategy.

A Resilient Diesel Market
Despite headlines about electrification and alternative fuels, diesel continues to be the workhorse of critical industries — from agriculture to over-the-road trucking. The U.S. Energy Information Administration (EIA) projects diesel consumption will remain steady through the end of the year, signaling ongoing demand for engine protection that can go the distance.

What That Means for You
With maintenance schedules picking up and service intervals tightening, it’s a smart time to ensure your shelves — and your customers’ fleets — are stocked with high-performing solutions. Our recommendation? Guardol^® ECT: a premium API CK-4 formulation built to protect emissions systems, extend drain intervals, and reduce operating costs.

A Partner in Performance
We’re not just here to supply product — we’re here to equip you with tools, training, and support to succeed. From inventory planning to field-ready marketing materials, let us help you power the conversations that matter most with your customers.