About Fuel symbols and the 1-minute rule: which statement is correct?
If you accidentally tanked the wrong fuel, you may start the engine briefly to move the car out of the way.
Square is the symbol for petrol, circle is the symbol for diesel.
This is an environment-focused efficiency tip, not a legal duty (legal_ref: n/a).
These fuel symbols (circle/square/diamond) only apply at Dutch filling stations.
Explanation
trap: advice-as-law. Book p.198 - this is an environment-focused efficiency tip, not a legal duty (legal_ref: n/a). The 1-minute threshold is a guideline to limit unnecessary emissions, not an offence if not followed