Why Oil Analysis for Marine Applications


Just like a yardstick measures length, used oil analysis measures wear. Similar to a doctor taking a blood sample, used oil analysis provides a “health report” on the engine the sample was taken from without having to open up the engine. This allows powerboat owners to know the health of their engines before heading out on a poker run or a long weekend at the lake.

Utilizing atomic emission spectroscopy, used oil analysis reveals the amount of wear occurring within an engine and reports it in parts per million of each element. As such, increasing levels of tin and lead indicate bearing wear. High levels of aluminum indicate piston scuffing, and each SPEEDiagnostix report provides these details in plain English – no chemistry degree required!

Fortunately, used oil analysis does not stop at indicating wear metals. Used oil analysis also reveals contaminants such as water or fuel dilution. Contamination levels provide insight into the tune up of the engine. High levels of fuel dilution indicate possible injector or carburetor problems. Again, the SPEEDiagnostix reports highlight and provide guidance related to contamination in plain English.

Finally, used oil analysis provides trend analysis which reveals the “health trend” of the engine. When should the engine be rebuilt? Trend analysis answers this question and others. Once a normal level of wear and contamination for certain engines has been established, it becomes easy to spot potential problems early on before they become much bigger problems. Catching problems early saves time and money.

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