The cruise altitude which results in the best fuel mileage.

可获得最佳燃油哩程的巡航高度。

youdao

One of the units (being tested for use in NHTSA crash studies) also has accelerometers, gyros, and other onboard sensors to measure emissions, fuel mileage, etc.

其中一个实例（在NHTSA 撞击测试己经测试）亦有加速表、迴转仪、和其他感应器测量废气、燃油里数…等资料。

youdao

The car rental included unlimited mileage, but not fuel.

汽车租金不限里程，但不包括燃油费。

《牛津词典》

Terrific...but don't you think it makes sense to be able to drive one that gets better fuel mileage?

ECONOMIST: The greens' favourite shows his spots

Hybrids can boost fuel mileage by 50%--but only if steered by Sunday drivers.

FORBES: Vehicle for Change?

The Wrangler is an awesome rig, but it desperately needs a small 4 cylinder diesel offering to improve fuel mileage.

FORBES: The 2014 Jeep Cherokee Is A Glutton For Punishment In More Ways Than One