Quote:
Originally Posted by suspectnumber961
... the top of the piston where the rings seal the combustion chamber from the rest of the engine...there is a lot of friction and wear. This is due to the nasty products of combustion and to the fact that due to the reciprocal nature of an engine...the pistons spends a good bit of time near the top of it's stroke. Also...most engines are lubed from below...from oil splash off the crank...not from the top.
This results in RING STICTION....an issue that a top lube can help.
If you've ever rebuilt an engine....you will know all about CYLINDER TAPER and the dreaded TOP RIDGE.
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After thinking about possible ways to quantify top-end lubricity (and consequently not really noting anything), one unrelated look under the hood sparked an idea that needs verification...
For a few years, I have been using a PCV condensate "catch" container, to condense and collect the blow-by/oil mix, before it makes a trip to the manifold to be burned and/or gunk up the works.
Thread link with pic.
Could the collected volume be an objective measurement of improved ring seal, or would the additive hypothetically prevent further wear, but on a long-term basis?
RH77