What does a Purifier Efficiency Test measure in a lube oil system?

A Purifier Efficiency Test is specifically designed to evaluate how effectively a lube oil purifier is performing its function of separating contaminants from the oil. This process checks the ability of the purifier to remove water, solids, and other impurities, thereby assessing its overall efficiency in maintaining the quality of the lubricating oil.

By measuring how well the purifier can perform this vital task, operators can determine if the system is functioning optimally or if maintenance or repairs are required. This information is crucial for ensuring that the lubricating oil stays within the necessary cleanliness levels to protect engine components and avoid premature wear or failure.

The other options do not directly relate to the primary purpose of the Purifier Efficiency Test. While the amount of oil in the system, its clarity, and the temperature can all be important factors in managing a lube oil system, these do not specifically measure the purification efficiency that the test is designed for.