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popabiancamaria
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Post by popabiancamaria »

which substance have research octane number ?
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expert
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Post by expert »

From Wikipedia:
Research Octane Number (RON)[edit]The most common type of octane rating worldwide is the Research Octane Number (RON). RON is determined by running the fuel in a test engine with a variable compression ratio under controlled conditions, and comparing the results with those for mixtures of iso-octane and n-heptane.

according to the table in Wikipedia, the highest RON belongs to methane (120) and even higher to hydrogen (>130)
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chemicalman
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Post by chemicalman »

Racing fuels, avgas, LPG and alcohol fuels such as methanol
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