Engine oil analysis is an important tool to gauge the health of an engine by looking at the levels of additive and wear metals. Other parameters are also checked to ensure that there has been no dilution of the engine oil with fuel or coolant leaks. People use oil analysis for different reasons: to see if there are any problems developing, to see if their oil is working well in the engine, and to see if they can run longer oil changes. This overall analysis package can help companies or individuals protect an intricate and very hard working piece of machinery and help against downtime and costly repairs.