What is another word for octane rating?
Pronunciation: [ˈɒkte͡ɪn ɹˈe͡ɪtɪŋ] (IPA) 
Octane rating is a term used to rate the performance of gasoline. There are several synonyms for octane rating which include: anti-knock index, road octane number, gasoline rating, research octane number, engine octane number, motor octane number, and pump octane number. Each term is used to describe the level of performance of gasoline in different situations. Anti-knock index indicates how well gasoline performs under various conditions, while road octane number measures a vehicle's performance on the road. Gasoline rating is a general term used to describe the performance of gasoline. Research, engine, and motor octane rating measure the performance of gasoline in engines under different conditions, while pump octane rating refers to the level of octane in gasoline pumped at gas stations.
