Rev. counter B-fig. 33 - 34 shows engine rpm.
IMPORTANT
The electronic system progressively blocks fuel flow to prevent engine from overrevving. This will lead to a progressive loss of engine power. When the engine is idling, the rev counter may indicate a gradual or sudden highering of the speed.
This is normal as it takes place during normal operation, for example when activating the climate control system or the fan. In particular a slow change in the speed preserves the battery charge.
See also:
Recommended Shift Speeds
To use your manual transmission for optimal fuel economy, it should be upshifted
as listed in the following table
...
Glow plugs
Turning the ignition key to MAR, the warning light on the dial comes on and goes
off when glow plugs reach the preset temperature. Start the engine immediately after
warning light switching off. ...
Cheap running that respects the environment
Environmental protection has been one of the guiding principles in the production
of the Fiat Doblò. It is no accident that its pollution control equipment is much
more effective than that ...