See also:

Tachometer
Always avoid engine speeds in the red warning field. In this range, the fuel supply is interrupted to protect the engine. ...

Check the tire inflationpressure regularly
Check and, if necessary, correct the tire inflation pressure at least twice a month and before starting on a long trip. Low tire inflation pressure increases rolling resistance and thus raises f ...

Use coasting conditions
When approaching a red light, take your foot off the accelerator and let the vehicle coast to a halt. On a downhill gradient, take your foot off the accelerator and let the vehicle roll. The flo ...