Vehicle Maintenance

Bluish-white smoke comes from the exhaust pipe. What does this normally indicate?

Reviewed on 29 Jul 2026

Question image: Bluish-white smoke comes from the exhaust pipe. What does this normally indicate
  • ✓ That the engine has too much oil or is burning oil
  • B That the fuel tank is empty
  • C That the tyres are worn
  • D That the battery is flat

Why this is the correct answer

Bluish-white exhaust smoke usually indicates the engine has too much oil or is burning oil. You should check the level and visit a garage.

All Vehicle Maintenance questions →

Practise this topic: 30 free questions, save your progress

Ready to pass the DGT theory test?

Practise official-format questions in English, with explanations after every answer and full progress tracking.

Try a free practice test