Are you looking to change the oil on your petrol Mazda 3? This tutorial will show you how to complete the process in a few easy steps.

Difficulty Rating


Tools/Parts Required

  • Oil Filter
  • Oil Filter Wrench
  • Crush Washer
  • Hex Socket
  • 5w-30 Oil
  • Flat Screwdriver
  • Oil Pan

Step 1

First lift your vehicle to provide better access. Under the car you will locate a panel with four screws/clips. Remove this panel to reveal the engine oil filter and sump plug.

Step 2

You can now see the oil filter and sump plug. Use a hex tool to loosen and remove the sump plug.

Step 3

Drain the oil into an oil pan. Once drained, reinstall the sump plug with a new crush washer.

Step 4

We will now replace the oil filter. Using the filter wrench, loosen and remove the oil filter. The filter will drip a large amount of oil, so ensure your oil pan is at the ready.

To help reduce oil starvation, half fill the new filter with fresh oil, and screw into position. Hand tighten.

Step 5

Lastly fill the engine with approximately 4.2L of 5w-30 fully synthetic oil. Continuously check the dipstick to ensure the oil is at the correct level.

Once filled, start and idle the engine for a few minutes. Turn the engine off and check for any leaks, and double check the dipstick as the level may have dropped slightly.

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