The API is aiming for a 2027 rollout of the new engine oil spec, which is meant to enhance performance standards.

January 1, 2027, will be the first license date for two new heavy-duty engine oil categories, if all goes as planned.

It’s an advanced, next-generation engine oil standard focusing on ultra-low viscosity oils for modern engines. When purchasing oil, look for the API Service Symbol "Donut" on the label, which is an ...