Mark one answer
It shrinks
It expands
It liquefies
It waxes
Explanation: When a full diesel fuel tank heats up, the fuel expands and can be forced out of the breather vent and onto the road. This wastes fuel and makes the road surface very dangerous for other road users.
Category: Vehicle Condition
References: The Official DVSA Guide to Driving Goods Vehicles: Section 2
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