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Mazda Mazda3 Skyactiv-G 2.0L I4 Engine Oil Change Guide
How to change the oil and replace the oil filter on a 2012, 2013 & 2014 Mazda Mazda3 with the Skyactiv-G 2.0L I4 engine.

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Mazda3 Skyactiv-G 2.0L
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SAE 0W-20 Oil
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Twist Off Oil Filler Cap

This automotive "how-to" guide was specifically written to assist owners of the 2012, 2013 and 2014 Mazda 3 equipped with the Skyactiv-G 2.0 liter inline four cylinder engine in changing the motor oil and replacing the oil filter.

Owners of other Mazda vehicles such as the Mazda2, Mazda5, Mazda6, MX-5 Miata, Mazdaspeed3, CX-5, CX-7, CX-9, MPV, Tribute, RX-8, Axela, Demio, Verisa, Premacy, and Atenza may also find these DIY instructions to be helpful.

The items needed to complete this procedure include a floor jack, jack stands, an 8mm socket with 1/4" ratcheting wrench, an 8mm Allen key or "hex" wrench, an automotive funnel, a new oil filter and 5 quarts of SAE 0W-20 oil.

A few compatible replacement canister style oil filters with their part numbers include the following: Purolator L10241, Royal Purple 10-2835, Wix 51348, Mobil 1 M1-102, Mann ML 1003, microGreen 201-1, Fram PH3614 and ACDelco PF53.

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Pull Up Oil Dipstick
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Raise Front of Vehicle
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Oil Service Access Panel
The first steps are to warm up the engine for a few minutes, park it on a level surface and shut off the engine.

Warming up the engine will help suspend any contaminants within the old oil and allow it to drain out more quickly.

Then pop open the hood, twist off the oil filler cap and pull up the yellow handled engine oil level dipstick.

Removing the oil filler cap and pulling up the dipstick will help prevent a vacuum from forming and allow the old oil to drain out more quickly.

Raise the front passenger side of the vehicle with the floor jack and securely support it with two jack stands.

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Remove 8mm Screw
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8mm Bolt Removed
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Pull Off Oil Service Cover
Slide under the car with the 8mm socket, 1/4" drive ratcheting wrench, 8mm Allen key or hex head wrench and the used oil catch basin.

Remove the single screw at the rear of the oil service access panel with the 8mm socket and ratcheting wrench by turning it counter clockwise. Set the screw aside in a safe place.

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Access Panel Removed
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Old Canister Oil Filter
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Loosen 8mm Hex Drain Bolt
Slide the oil service access panel off towards the rear of the vehicle to reveal the oil filter and oil drain bolt.

Move the used oil catch container to just below the black metal oil drain bolt.



 

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Drain Out Old Oil
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Replace 8mm Allen Drain Bolt
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Twist Off Old Oil Filter
Loosen the oil drain bolt with an 8mm Allen key or hex head wrench by turning it counter clockwise. Be careful since the old oil may be hot enough to burn your skin depending on how long you warmed up the engine.

Remove the oil drain bolt and allow the old oil to drain out for at least a few minutes or until it slows to an occasional drip.

Replace the oil drain bolt and tighten it just past hand tight or anywhere from about 25 to 30 ft lbs of torque.

Slide the used oil catch container to just below the oil filter.

Twist off the old oil filter in the counter clockwise direction and allow the old oil to drain out for a few minutes. You may need to use an oil filter wrench to loosen the old oil filter.

Make sure that the rubber o-ring from the old oil filter is not still stuck to the engine.

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Drain Oil From Filter
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Dip Pinky Finger In Oil
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Lubricate Rubber O-Ring
Dip your pinky finger in some new SAE 0W-20 oil and lubricate the rubber o-ring on the new oil filter.

Lubricating the rubber o-ring will allow the new filter to form a better seal and make it easier to remove at the next oil change.

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Spin On New Oil Filter
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Line Up Oil Service Cover
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Push Access Panel In Place
Spin on the new oil filter in the clockwise direction to about 1/4 to 1/3 turn past hand tight.

Do not over tighten the oil filter or use the oil filter wrench to tighten it. Over tightening the oil filter can damage the rubber o-ring and lead to oil leaks.

Double check that the oil drain bolt and new oil filter are tight before moving on to the next steps.

Line up the black plastic oil change access panel and slide the tabs at the front edge in place on the engine underside cover.

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Tighten 8mm Screw
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Lower Car From Jack
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Insert Automotive Funnel
Insert the 8mm screw in to the hole at the rear of the oil change access panel and tighten it with the socket and ratcheting wrench to just past hand tight.

Lower the car from the jack stands using the floor jack.

Insert the automotive funnel in to the oil filler hole.

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Pour In SAE 0W-20 Oil
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Replace Oil Filler Cap
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Check Dipstick Oil Level
Pour in about 4 quarts of the engine's 4.4 quart (4.2L) total capacity for an oil change with filter replacement.

It is far better to have slightly less than enough oil in the engine than too much.

Temporarily replace the oil filler cap and push in the dipstick.

Start the engine, let it run for a few minutes, shut it off, and allow the oil to drain back to the oil pan for about 5 to 10 minutes.

Slowly add in more oil until the level on the dipstick reaches at or just below the upper metal dot. You may not need to pour in the entire 4.4 quarts (4.2 liters) of new oil depending on how long you allowed the old oil to drain out.

Once the oil level is correct, twist on the oil filler cap and replace the dipstick.

Be sure to record the oil change in your vehicle's service records. It's also a good idea to watch your driveway or parking spot for drops of oil and check the oil level on the dipstick several times during the next few days.

For more, check out my other 2010-2013 Mazda Mazda3 Repair & Maintenance Guides.
 

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