The importance of oil sampling on a regular basisRoutine oil sampling is the key to a successful maintenance program. Oil testing provides essential information to determine the condition of your equipment. Baseline of normal wear can be established during the first few months of a program. As the program matures, only routinely scheduled testing can…Read more
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Technical Bulletin: Varnish Report Updates
Varnish Potential Analysis - Report Upgrades In order to provide the best analysis and recommendations of varnish test results, TestOil will be making some changes to reporting and alarming of several varnish test parameters. Ultra Centrifuge: After reviewing many case studies, TestOil analysts have determined that there are instances when ultra centrifuge results as low…Read more
Why Aren’t My Oil Analysis Results Correlating?
Why Aren't My Oil Analysis Results Correlating? A common issue related to oil analysis report interpretation deals with a perceived necessity for the results from two or more different tests to indicate the same potential problem. This expectation, which may be based on a misconception, often leads to greater confusion. Therefore, it is important to…Read more
Understanding ISO Codes
Understanding ISO CodesThough particle counting is reported as an actual count of the number of particles (of a given size, per ml of fluid), most specifications and limits simply refer to ISO codes. The ISO codes, according to the ISO 4406:1999 standard, relate to only three different ranges of particles, ≥4 µm/≥6 µm/≥14 µm.It should…Read more
Causes of High Nitration
Causes of High Nitration Excessive aeration can lead to compression combustion of air molecules (microdieseling) causing thermal breakdown of oil molecules, which will increase the nitration value. In engine applications, early combustion caused by advanced timing will produce nitration by-products. These by-products form a slimy brown or reddish-brown residue. For specific information on other measured…Read more
Causes of High Oxidation
Causes of High Oxidation While some new oils may produce an oxidation value due to the presence of synthetic esters, increases in oxidation generally represent degradation of the fluid. The biggest driver to oxidation is heat, as the rate of reaction doubles with every 10 °C or 18 °F increase in temperature. This type of…Read more
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