Old oil sample

[William Milanese]

I Performed an oil change on QSB 5.9 engines 10 days ago. The boat is new to me since July. The oil sample were no longer available the day I went to do the service so I have dated oil in my garage. I think a bench mark is important but is it too late to get a meaningful analysis at this late date?

Topic

[Rob Schepis]

IMO just send it in as-is but you can check with the labs on your concerns prior to sending it in.

[William Milanese]

Thanks Rob

Should I use a mixer to get a complete suspension? One motor would lose a very small amount of coolant so I was curious if the oil sample would tell me if it made its way to the crankcase. I thought these were time sensitive

[Rob Schepis]

“Meaningful” Oil Sample..

Is your question whether or not the dated oil can still be properly analyzed? Should be fine… How old is it?

As to whether or not your oil sample will prove “meaningful”…. That is the magic question…

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