Revision question · Safety and your vehicle

The fluid level in your battery is low. What fluid should you use to top it up?

Revision material from the imported DVSA bank includes source-checked Lanekind learning corrections. These corrections are not newly issued official examination questions, and practice does not reproduce a live test paper.

Answer options

Battery acid

Distilled water

Engine oil

Engine coolant

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Distilled waterThis was the right answer

Some modern batteries are maintenance free. Check your vehicle handbook and, if necessary, make sure that the plates in each battery cell are covered with fluid.

Reviewed reading for this question

Topping up a maintainable batteryReviewed guidance summary · The manufacturer explicitly identifies both the fluid and the plate-covering level; this is not a task for every modern battery.

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