unleaded

1. ADJ Unleaded fuel contains a smaller amount of lead than most fuels so that it produces less harmful substances when it is burned. (燃料) 无铅的

He filled up his Toyota with regular unleaded petrol. 他把自己的丰田车加满了普通无铅汽油。

2. N-UNCOUNT Unleaded is also a noun. 无铅汽油

All its V8 engines will run happily on unleaded. 所有其V8引擎将靠无铅汽油良好运转。