So which of those engine cleaning products actually works?

[trailerparksuperstar]

Hell if you want some high octane fuel run some diesel in it . That stuff will clean some shit.

And vice versa, A little gasoline will clean a diesel engine as well.

[SMEGMA STENCH]

Wait a minute now. I'm no chemist or anything, but I see some people here saying that 93 is actually more "volatile" than 87. Yet it burns slower. That doesn't really make sense does it? How could it be more volatile, yet not explode quite as fast? You would think the faster the explosion, the more fuel got burned.