See also:

Tachometer
Never force the engine speed up into the red warning field, see arrow. In this range, the fuel supply is interrupted to protect the engine. ...

Fuel gauge
The vehicle inclination may cause the display to vary. Notes on refueling, refer to page 234. ...

Fuel specifications
Never use fuels labeled at the fuel pump as metal-containing. Do not use leaded gasoline or gasoline with metal-containing additives such as manganese or iron; doing so can cause permanent damag ...