Did you know? … Rising TAN levels are an early warning sign that your oil is no longer fit for service.

Over time, heat, oxidation, and contaminants gradually reduce a lubricant’s properties. One of the best indicators of this degradation is the Total Acid Number (TAN).

Why is it important to monitor TAN?

When oil acid number increases, it often indicates:

• Lubricant oxidation
• Loss of essential additives
• Increased risk of internal corrosion, sludge and varnish formation
• Decreased equipment performance

Without monitoring, this evolution can go unnoticed… until failure. A simple, rapid test can make all the difference.

With GESERCO solutions, TAN can be measured directly on-site in just a few minutes, allowing you to:

• Decide whether the lubricant can remain in service
• Detect premature degradation
• Optimize oil change intervals
• Prevent costly damage

Learn more about our solutions → GESERCO Solutions