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Fact bank
Original explanations from the question bank, with sources for further reading.
A lower, steadier speed usually uses less fuel than repeated acceleration.
Source: Trafikförordningen (1998:1276), 2 kap. 1 §; Miljöbalken (1998:808), 2 kap.
Switch off when you are stopped longer than you need. Idling burns fuel for no benefit.
Source: Trafikförordningen (1998:1276), 2 kap. 1 §; Miljöbalken (1998:808), 2 kap.
Planning and easing off in time uses less fuel than braking the speed away late.
Source: Trafikförordningen (1998:1276), 2 kap. 1 §; Miljöbalken (1998:808), 2 kap.
Pressure that is too low raises rolling resistance, uses more fuel and worsens handling.
Source: Trafikförordningen (1998:1276), 2 kap. 1 §; Miljöbalken (1998:808), 2 kap.