Ash content corrolations to Pre-Ignition

[vex]

Originally Posted by Heeley

So if i'm interpreting things correctly, does this mean that using ATF in an oil injection system is better for apex seal lubrication over 2 stroke?

No, Two stroke out performs ATF with slowing Apex seal wear

Then what would be the comparison to engine oil?

See later posts regarding that

and at what point does the ash content come into play?

Pre-Ignition events. The lower the ash content the less likely a pre-ignition event occurs

Doesn't it just trade off one problem for another?

Not really. We're looking for low ash content which is reflective in the base oil being excellently refined. We're also looking for an additive package that still cleans and protects. The protection comes from the oil and additives, not from the ash and impurities.