Gasoline

Mike Smith wrote:
> JP Roberts wrote:
> > > wrote:
> >
> > Your own words, where you never mentioned "pre-ignition", you very clearly
> > stated self-ignition instead:
>
> And how, exactly, are "pre-ignition" and "self-ignition" different?
> They both refer to spontaneous combustion of the fuel/air charge, prior
> to the occurrence of the spark.

Don't bother- JP is foaming at the mouth to find anything wrong with
what I write. Yes, "ping" and "knock" seem to have become synonymous
at some point, but I remember as a lad (in the distant past - maybe
before Karl Benz named a car after his daughter) that pinging referred
to pre-ignition, and that it had a different sound from knocking.

But hey, if JP wants to score his little victory, who am I to deny it?
If ping now equals knock, or even if it always has, and my automotive
mentor was wrong, then I'll chalk it up to something learned. And it's
a good day when you learn something new.



E.P.