What Does TBN Stand For?

TBN stands for Total Base Number

Total Base Number (TBN) is a measurement used to assess the alkalinity of lubricating oils and other fluids. It indicates the oil's ability to neutralize acids that may form during combustion or oxidation processes. A higher TBN value signifies a greater capacity to counteract acid buildup, which is essential for maintaining engine cleanliness, preventing corrosion, and extending the life of the lubricant. Regular monitoring of TBN helps ensure optimal performance and protection of machinery.

Added on 14th April 2008 | Last edited on 16th June 2025 | Edit Acronym

Other Meanings for TBN