API PC-12 oil specification approved with CL-4 and FB-4 marks available ahead of 2027 licensing and new engine oil performance standards.

API Service Category CL-4 and API FB-4 'Donut' certification marks enable oil marketers to align with 2027 heavy-duty engine standards.

Heavy-duty engine oil marketers can begin finalizing formulations and preparing product packaging to meet the new oil ...

Several companies that blend diesel exhaust fluid, the urea solution used in truck engines with selective catalytic reduction systems, have had their blends certified by the American Petroleum ...