Quote:
Originally Posted by Odin
one thing i think you are forgetting diesel is injected at very very very high pressure which is one of the reasons it burns the way it does (in my benz its 5500psi) it only gives off a clean and controlled burn under these pressures because its atomized into a super fine mist if you just shot it in with the intake you would not get the same results
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I'm definitely not forgetting how/when diesel fuel in injected into the cylinder in a diesel engine. What I keep trying to back to is how each fuel would perform under identical conditions (this particular situation revolving around a gasoline engine.
I don't have an interest in why diesel fuel can be used in diesel engines.
It boils down to this.
It takes ~600°F to auto ignite diesel.
It takes 495°F to auto ignite gas. If a gas engine has enough compression to make diesel fuel auto ignite, then the cylinder temp must reach ~600°F during compression.
If the cylinder reaches ~600°F, then it must invariably reach 495°F on it's way there. If it reaches 495° The gasoline wile auto ignite long before the diesel will.
If putting diesel in a gas engine would make it knock, then it seems putting gasoline in the engine would make it knock worse.