Revision question · Environmental issues

Which fuel provides a reduction in exhaust emissions harmful to human health?

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

High-sulphur diesel

Red diesel

Low-sulphur diesel

Blue diesel

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Low-sulphur dieselThis was the right answer

Less sulphur in the fuel reduces the sulphur-dioxide contribution from combustion. Sulphur dioxide is a gas, not diesel soot. Low-sulphur fuel does not remove every harmful emission; use the grade specified for the vehicle.

Reviewed reading for this question

Lower sulphur reduces sulphur-related emissionsReviewed guidance summary · The inspected pump advertises ultra-low-sulphur diesel. The reading addresses that specific property, not a claim that this is the cleanest possible propulsion system.

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