API PC-12 engine oil categories CL-4 and FB-4 are advancing toward a 2027 launch. Here’s what the changes mean for fleets, ...
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 ...
At-a-Glance: Heavy oil is a dense, viscous petroleum fluid (typically 10–22 °API) enriched in resins/asphaltenes with low gas content, formed when originally lighter oils are altered after charge by ...
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