So I was running extremely low on time 2 years ago with winterizing my boat. I only had about 20 hours on the oil and decided to forego it for other more pressing needs. I used fully synthetic 5w-40.
This year I only had about 10 hours on the boat because as of sept 4th, we have two kids under 2. So I wondered how my oil was actually wearing. I sent a sample into blackstone analysis to see how the oil was doing.
They said it was doing just fine after almost 2 years with under 50 hours. In fact, the wear levels even went down with plenty of viscosity left.
I would only attempt this with fully synthetic oils (I would actually only recommend fully synthetic oils anyways).
I know there is always the "cheap insurance" principle as to "why not doing it" but oils have come a long way so figured I would share actual chemical analysis data of 2 year old oil under 50 hours.
This year I only had about 10 hours on the boat because as of sept 4th, we have two kids under 2. So I wondered how my oil was actually wearing. I sent a sample into blackstone analysis to see how the oil was doing.
They said it was doing just fine after almost 2 years with under 50 hours. In fact, the wear levels even went down with plenty of viscosity left.
I would only attempt this with fully synthetic oils (I would actually only recommend fully synthetic oils anyways).
I know there is always the "cheap insurance" principle as to "why not doing it" but oils have come a long way so figured I would share actual chemical analysis data of 2 year old oil under 50 hours.
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