What does the oil pressure warning light mean?

A red oil pressure light means your engine is not getting enough oil pressure to lubricate its moving parts. Pull over and switch off immediately — driving even a mile further can wreck the bearings, camshaft and turbo.

Here's a quick, honest answer from a working UK mechanic — what causes it, what it costs to fix, and what to do next.

Bob's Mechanical Repairs — independent family-run garage in Birnam, Dunkeld, Perthshire. Call 01350 727 276 or email bob@bobsmechanicalrepairs.co.uk.