The oil pan (sump) gasket creates a seal between the oil pan and the engine block, keeping engine oil contained. Over time, this gasket can wear, crack, or fail, causing oil leaks. If left untreated, leaking oil can lower engine oil levels, damage surrounding components, and increase the risk of engine failure. Replacing a worn sump gasket restores a proper seal and prevents leaks.

What is an oil pan / sump gasket replacement?

This service involves removing the oil pan, cleaning the mating surfaces, and fitting a new gasket to ensure a tight seal. Fresh oil is added, and the system is checked for leaks.

Why do you need an oil pan / sump gasket replacement?

A leaking sump gasket allows oil to escape, leading to low oil levels and poor lubrication. If ignored, this can cause excessive wear, overheating, or even engine seizure. Replacement ensures the engine remains properly lubricated and protected.

Common signs you need an oil pan / sump gasket replacement

• Oil spots or puddles under the car
• Visible oil around the oil pan or gasket area
• Burning oil smell while driving
• Low oil levels despite regular top-ups
• Oil warning light illuminated

What happens during an oil pan / sump gasket replacement?

A mechanic will:

1. Drain the engine oil
2. Remove the oil pan from the engine block
3. Clean and prepare the gasket surfaces
4. Install a new sump gasket and refit the oil pan
5. Refill with fresh engine oil
6. Run the engine and check for leaks

How much does an oil pan / sump gasket replacement cost?

Replacement typically costs $350–$800, depending on vehicle type and accessibility. Labour costs may be higher if other components need to be removed to access the sump.

Is it unsafe to drive with a leaking sump gasket?

Yes. Driving with a leaking oil pan gasket can cause oil loss and low oil pressure, leading to severe engine damage. The issue should be repaired as soon as possible.