API PC-12 is rewriting the rules of Heavy Duty lubrication. Are you ready?

PC-12 oils support sustainability goals in two ways. First, the introduction of next-generation low-viscosity categories reduces internal engine friction, directly improving fuel efficiency and lowering CO₂ emissions. Second, their updated chemical formulations are fully compatible with advanced exhaust aftertreatment systems (such as DPFs and SCRs), ensuring long-term emissions compliance without hardware degradation.

The primary consideration is your fleet's engine mix. You will need to evaluate whether your operations require PC-12A lubricants (designed with traditional viscosity for full backward compatibility with legacy engines) or PC-12B lubricants (engineered with lower viscosity to maximize fuel economy in the newest engine models). Reviewing OEM recommendations and analyzing your current oil drain intervals are great starting points.

Preparation is key to a seamless transition ahead of the 2027 industry shift. Start by auditing your current fleet demographics and reviewing your upcoming vehicle procurement plans. Most importantly, don't hesitate to contact your local TotalEnergies technical experts, they are available to analyze your specific operational needs, help you map out a tailored lubrication strategy, and guide your workshops through every step of the transition.

The API( PC-12) specification is scheduled to officially roll out in early 2027. TotalEnergies and its technical teams are fully committed to this timeline: our next-generation heavy-duty range is being developed to be ready right from the launch of the specification, so your business can react swiftly, with no unnecessary delays, and secure the right, compliant products as the transition begins.

By introducing lower-viscosity alternatives under Category FB-4, the API PC-12 standard is specifically engineered to cut internal engine friction. For your fleet, this means reduced fuel consumption and a direct reduction in your carbon footprint — helping you meet both environmental targets and tight operating budgets without sacrificing engine durability.

Modern engines run hotter than ever. API PC-12 lubricants feature advanced thermal stability designed to resist oil thickening and chemical breakdown under extreme temperatures. This superior oxidation resistance ensures the oil maintains its protective properties longer, allowing you to safely reach maximum OEM-recommended drain intervals and reduce vehicle downtime.

Thinner oil does not mean less protection. API PC-12 introduces new, stringent industry tests for ring, liner and valvetrain wear. Upcoming formulations create an ultra-tough microscopic shield over critical moving parts, guaranteeing excellent mechanical longevity even under heavy loads and severe driving conditions.

Managing a mixed fleet with various vehicle generations can be a logistical challenge. Thanks to the full backward compatibility of API PC-12 Category CL-4, you will be able to upgrade your current API CK-4 oils seamlessly one single, advanced product protecting both your legacy trucks and your current fleet, simplifying workshop maintenance and preventing misapplication.

The American Petroleum Institute (API) is the leading trade association representing all aspects of the oil and natural gas industry in the United States.

Founded in 1919, it brings together key players in the sector and works to promote technical standards, public policies that support innovation, and transparent communication on energy-related issues.