The goal of Oil Drain Interval Optimization is to achieve the lowest total operating cost, without making any concessions on engine operation or reliability.

When evaluating marine lubricant options, the cost per litre seems like a simple bottom-line figure. But a cheaper oil may not be the most cost effective solution overall.

The total cost of replacing lubricant includes many other factors. Many vessel operators follow OEM guidelines on drain intervals whether or not they are accurate for their circumstances. If drain intervals can be safely extended, less oil will need to be purchased. But in addition to this, increasing drain intervals means less downtime, less time spent by engineers in the potentially hazardous engine room environment, less risk of spillage, and less money spent on safely disposing of the old, used oil. All these effects have measurable and predictable cost benefits.

A recent assessment by ExxonMobil of 75,000 samples of drained oil showed that only 22% truly needed to be changed at that time.

The initial stages of Oil Drain Interval Optimization are cost- and risk- free. By analysing existing data with reference to ExxonMobil Marine’s extensive used oil analysis database, we can provide tailored recommendations on oil type and drain interval. If you choose to go ahead with our recommendations, their effectiveness can be verified using used oil sampling.

To find out more contact John at 02380 522167 or john@williams-shipping.co.uk.