On 25/08/15 16:27, NY wrote:
"dennis@home" wrote in message
b.com...
On 25/08/2015 16:16, NY wrote:

Or are you saying that some engines injected fuel into cool air during
the induction stroke, then compressed the fuel-and-air mixture (as
opposed to just the air) and let combustion occur when the air had been
compressed to a high enough temperature?

There are engines like that.
I once had a two stroke compression ignition engine that did that.
Used to drive a six inch prop.

OK. Fair enough.

But as the title of the thread is "supermarket fuel", let's confine
ourselves to car (and van/lorry) engines. Are there any of those that
ignite a fuel-and-air mixture by compression, rather than injecting fuel
into combustion-heated air?

Not made in the last 25 years, no


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New Socialism consists essentially in being seen to have your heart in the right place whilst your head is in the clouds and your hand is in someone else's pocket.