The thing is there are a few items that come into play. Ring land ridge formation from not being run up to redline now and then. Granny driven motors that then go to a teenager, will blow up when beat on ...
Second item is that foaming potential of the crankcase and the oil chosen. No windage tray and high RPM can suck up a lot of oil and foam it badly. Foam does not lubricate ...
OTOH, full throttle under mid-RPM conditions should do no harm at all, except to the fuel mileage
Second item is that foaming potential of the crankcase and the oil chosen. No windage tray and high RPM can suck up a lot of oil and foam it badly. Foam does not lubricate ...
OTOH, full throttle under mid-RPM conditions should do no harm at all, except to the fuel mileage