I don't exactly agree with the article's comment that, "the fuel is ignited by the glowingly hot engine itself" - sort of implies the engine body proper is some

I don't exactly agree with the article's comment that, "the fuel is ignited by the glowingly hot engine itself" - sort of implies the engine body proper is some hunk of hot glowing metal. Wikipedia's description matches my memory that "the ignition is accomplished by a combination of heating from compression, heating from a glow plug and the catalytic effect of the platinum within the glow plug on the methanol within the fuel."