Skip to content
EN · km
Language
Units
My Garage

Burning Oil Smell

A smell of hot or burning oil, often stronger after stopping, usually means oil is leaking onto the exhaust or a hot engine part, for example from a valve cover gasket.

High risk

Have it checked soon. Oil on a hot exhaust can smoke and, in rare cases, catch fire.

Short answer · Why does my car smell of burning oil?

Oil leaking from gaskets at the top of the engine can drip onto the exhaust manifold, which is very hot. The oil then burns and smells. Overfilled oil, a loose filler cap or spilled oil after an oil change can cause the same smell for a short time. Check the oil level and look for wet areas on the engine.

On this page

Safe checks you can do

  1. Check the oil levelLow oil supports a leak; too much oil can also cause problems.
  2. Look for smoke from the bonnetLight smoke over the exhaust side points to a leak.If there is heavy smoke or flames, stop, switch off and move away from the car.
  3. Check the filler capMake sure it is fitted and tight.

Questions that narrow it down

  1. Was the oil changed recently?Spilled oil may be burning off.
  2. Is the oil level dropping?A leak or burning oil.
  3. Is there blue smoke from the exhaust?Oil is burning inside the engine.

Possible causes

Listed without ranking. Use the questions above to see which ones fit your car.

  1. Valve cover gasket leakDrips onto the exhaust.
  2. Oil spilled during an oil changeBurns off in a few trips.
  3. Loose oil filter or drain plugLeaks after a service.
  4. Turbocharger oil leakOil reaches hot parts.
  5. Overfilled engine oilCan be pushed out through seals.

Questions about Burning Oil Smell

Can a burning oil smell cause a fire?

It is rare, but oil on a very hot exhaust can ignite. Do not ignore a growing leak.

Why is the smell stronger after stopping?

Without air flow, heat and smell rise from the engine bay.