[Railcarmover]

Originally Posted by Y-Blockhead

And I wasn't disagreeing with you, Sir. And that is why I still advocate using an Air Filter and an Oil Filter. Yes, some of the smaller "particulate" won't be filtered, but larger particles will... before they get to the bearings.

Its all good from my view,please don't take me wrong. The more filtration the better,as fars as Im concerned..though the aftermarket bypass filters would take about thirty years to filter the crankcase .

You have an interesting theory on dilution effects 40 Deluxe..No doubt about the gasoline evaporation effect,but the unburnt fuel that does get passed the rings carries soot and is very acidic.In my opinion it causes breakdown of the oil and contributes to bearing failure.I still see the advantages of the CD oils as opposed to the SN oils with the A engine..the CD oils are more tolerant of gasoline washing past the rings due to its superior detergent and soot entrainment qualities.