Significats de octane number en anglès

E85 has a 104 octane rating, compared to the usual 91 or 92 rating for premium gas.

Nesbitt says the octane rating equivalent for natural gas is 130, so the engine required specially forged high-compression 12.5:1 pistons and high-lift, short-duration camshafts.

Octane Rating: The octane rating of a fuel determines the propensity to explode rather than simply burn when mixed with air and ignited.