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in-service lubricants

When do you change your turbine oil?

Most turbine oil users change their fluid based on its condition rather than interval-based oil changes, such as what we do when changing the motor oil in our vehicles. There is inconsistency however in understanding what conditions justify a lube oil change. Part of this inconsistency is due to lack of knowledge; part of it…

How to Effectively Use the RULER & Report Antioxidants as Percentage of New Oil

This post is directly related to the effective use the RULER even when you don’t have a new oil reference sample or if you have multiple formulations in your reservoir. Monitoring the health of turbine oil antioxidants is one of the most important tests in determining the Remaining Useful Life of a turbine oil. RULER…

The Frequency of Changing your Turbine Oils

Due to the large reservoir sizes of steam and gas turbines, it is most common to change turbine oils based on their condition rather than time. The most widely used guideline for determining the end of the useful life of the oil is ASTM D4378. A common endpoint is when the oxidative stability or antioxidant…

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