Originally Posted by Blue Heron
Anthony, I just got the boat in may. I have survey samples and then this sample from oil change and maintenance action. At 50.00 for both motors, I intend to sample at the mid life of each oil change or 100 hours.
Congratulations on your new to you purchase. Whereas I am a huge advocat of preventative maintenance, every oil change should suffice for building a historical view of the internals of all of your components. You can always perform samples mid-term for a more finite chart, but I feel for the most part, it is a task that is generally not needed until a sample comes back indicating that something is going on. Depending on the result, I adjust the interval for sampling according to what is going on, and take action to see if I can locate the cause of the rising level. It is entirely up to you and never hurts. Thanks for the update and safe sailing.