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Mazda 3 Change Engine Oil DIY

Step-by-step procedure on how to oil change and replace the air filter on a 2016 Mazda 3.

Mazda 3 Change Engine Oil DIY
DIY COST $ 35 - 70

What you will need


Capacity: 4.4  US qt (4.6l)

1 quart (US) = 0.9463 liter



  1. Park the vehicle on level ground.
  2. Put wheel chocks or block the back wheel of the vehicle to prevent it from rolling back.
  3. Jack up the vehicle.Jacking up the Mazda 3.
  4. Support the vehicle with jack stands.

    Support the vehicle with jack stands.
  5. Detach the small cover under the engine by removing all the screws and pushing pins around it.Removing the plastic cover under the engine.

    Use a screwdriver to remove the screws and a flat screwdriver to unlock the push pins.

  6. Locate the oil filter and drain plug under the engine.The oil filter of the Mazda 3.
  7. Put the oil pan below the drain plug and oil filter.
  8. Loosen the oil drain plug using an Allen wrench and drain the engine oil by removing the drain plug by hand. Loosen the drain plug of the engine.

    To loosen the drain plug, turn the Allen wrench counterclockwise. 

    Drain the engine oil of the Mazda 3
  9. Remove the old oil filter and install the new oil filter.Removing the oil filter of the engine.

    Loosen the oil filter using a clamp plier. Once the oil filter is loose, remove it by hand. 

    Installing the new oil filter.
  10. Replace the copper washer on the drain plug and reinstall the drain plug back.

    Reinstalling the drain plug with a new copper washer.


  11. Open the hood and locate the oil cap on the top of the engine.The oil cap and dipstick of the engine on a Mazda 3.Open the oil cap by turning it counterclockwise.


    The oil cap of the Mazda 3.
  12. Put a funnel on the oil cap and pour in the engine oil. Make sure to reinstall the oil cap back when done adding the oil.Adding engine oil to the Mazda 3.

    Use the brake fluid recommended by the vehicle's manufacturer.

  13. Check the oil level. Pull out the dipstick and wipe it clean, then fully insert the dipstick and pull it out again.Checking the oil level of the engine. The indicator of the oil level is on the bottom of the dipstick.


    Checking the oil level of the engine.


Torque Specifications

  • Oil filter: 22-26 ft-lbs
  • Oil drain plug: 23-30 ft-lbs

One newton meter equals 0.7376 ft-lbs, rounded to 4 decimal places. To convert newton meters to foot-pounds, multiply your figure by 0.7376.

Applicable Oil Filters

  • Genuine Mazda (1WPE-14302)
  • Genuine Mazda (LF05-14-302B)
  • Pulorator PL14612
  • Pulorator PL10241
  • Fram PH6607
  • Fram XG3614
  • Mobil 1 M1-108A
  • K&N PS-1008
  • K&N KN-198 Polaris


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  • Prolonged and repeated contact with mineral oil can result in dryness, irritation, and dermatitis.
  • Used engine oil contains potentially harmful contaminants which may cause skin cancer.
  • Wash your skin thoroughly with soap and water to remove any used engine oil. 

Frequently Asked Questions

What type of engine oil do I need?

The oil viscosity is usually printed on the oil cap. If it is not, then you need to find the owner's manual under the recommended fluids and lubricants section typically at the end of the owner's manual. 

  • at the oil cap
  • owner's manual
  • sticker by the top radiator support

Should I change the oil when the engine is hot or cold?

  • There is a lot of discussion on this topic of whether you should change the oil when the engine is hot or cold. Ideally, the oil should be slightly warm so it can flow easily but not burn you. 

How much does it cost to change the oil?

  • Anywhere from $19.99 to $150. A four-cylinder engine that takes 5w30 or 0w20, such as a Honda Civic or Ford Focus, will only cost you about $20. A Mercedes-Benz E-Class that takes 8.5L synthetic oil and fleece oil filter may cost as much as $150 at the dealer. Two of the main factors that play a role in engine oil cost are the oil type (synthetic, synthetic blend, conventional) and oil quantity required. Oil filter quality and how easy it is to remove may also play a role in the price of an oil change.

How often should I change engine oil?

Typical recommended intervals for most vehicles. 

  • Conventional Oil - Every 3,000 miles
  • Synthetic Blend - Every 5,000 miles
  • Synthetic Oil - Every 7500-10,000 miles (verify owner's manual)

Follow the recommended manufacturer intervals.

Can I change the engine oil at home?

  • Yes, you can. Follow this guide. We hope that once you go over all the steps, you will feel confident about the procedure to change the engine oil at home.

Can I change engine oil once a year?

  • While the age of oil can play a factor in the engine oil life, you need to pay closer attention to the miles driven. If you drive very little (under 5,000 miles) and use synthetic oil, you should be ok with changing the oil once a year.

Can I change engine oil but not filter?

  • Not recommended. You should change the oil filter at the same time that you change the engine oil. Oil filters do not last forever, and if not changed regularly, they will not filter the oil or, even worse, clog. In which case, the oil may bypass the oil filter altogether, which is a situation you don't want as you may shorten the life of the engine.

Is it necessary to change engine oil every year?

  • Yes. Most drivers should change the engine oil at least twice if not more per year, depending on the oil type and miles driven. If you put about 15,000 miles per year which is the national average in the US, you should change the engine oil at least twice per year. Assuming that you are using synthetic oil and a good oil filter. 

Should I change the engine oil before or after storing the car for long periods?

  • Change the engine oil if stored for over 6 months. Oil can lose its lubricating properties when sitting for an extended period of time. Change the engine oil if your car has been sitting for a long time.

What happens if I don't change the oil?

  • You are shortening the life of your car. Sludge may build up. The engine may start to knock. Most importantly, bearings will wear much faster. You may not notice any symptoms right away, but you are causing premature wear to your car engine.

How much oil do I need to add?

  • Check on your owner's manual. Every car has a different capacity. There is no correlation between the number of cylinders and oil capacity. Some 6 cylinder engines require only four quarts, while others may require eight quarts. Always check the owner's manual. You don't want to overfill or underfill.

Safety Tips

Auto Repair Safety Notes


Mazda 3 Change Engine Oil DIY Step-by-step procedure on how to oil change and replace the air filter on a 2016 Mazda 3.