給きゅう油ゆ口こう

noun

fuel filler opening; tank pipe opening

Refers to the opening where fuel is inserted into a vehicle or machine. Common in automotive contexts.

• 給きゅう油ゆ口こうのキャップをしっかり閉しめてください。

  Please close the fuel filler cap tightly.

• この車くるまの給きゅう油ゆ口こうは左ひだり側がわにあります。

  The fuel filler opening of this car is on the left side.