1.
high-octane gasoline; premium
Premium gasoline with a high octane rating, required by some high-performance and imported cars. Short for ハイオクタンガソリン. At a Japanese gas station it is one of three standard choices with レギュラー and 軽油 (diesel).
Related Words
Related:
レギュラー (regular gasoline)
Related:
軽油 (diesel fuel)
Related:
満タン (a full tank)