Hazard awareness

You see a shiny, rainbow-coloured patch across the road surface. What does this warn you of?

Fresh paint that has not dried
A puddle of clean rainwater
Spilt diesel or oil, which makes the road slippery
Correct
A change in the speed limit

Why?

Rule 227 of The Highway Code warns that spilt diesel or oil leaves a rainbow sheen and makes the surface very slippery, reducing your grip. Slow down and avoid harsh braking or steering over it.

Highway Code rule 227

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You see a shiny, rainbow-coloured patch across the road surface. What does this warn you of?

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