Talk:Oil engine
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The part about not including diesels is wrong. I don't want to research it or I'd rewrite it.
A so-called Oil Engine is in fact what we would call a diesel engine now. Back in the day, they seemed to focus on a diesel using super high pressure air to inject the fuel oil. That was considered a Diesel Engine. An engine that used pump mechanisms to force the fuel into the cylinder (against the high pressure air inside) was called an Oil Engine. That became the norm and I suppose people rethought things and realized that the salient feature of a diesel engine was that it used compression for ignition, the fact that the air charge was compressed so much that the heat of compression made it burning hot and fuel sprayed in would start to burn just from that. THAT was the important thing, not how the fuel was injected. — Preceding unsigned comment added by 66.245.71.5 (talk) 03:26, 2 November 2014 (UTC)