Posted by IAP on 2/26/2021 to
Are you familiar with air compressor lubricant TAN, or Total Acid Number? TAN is a measure of the acids in your air compressor lubricants. When a lubricant’s TAN reaches 2.0, it’s time to change it, otherwise the sulfuric acid in your oil can do serious damage to your compressor. Acid corrosion can lead to premature air/oil separator and filter blockages, bearing failure and other major maintenance headaches.