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GMC Acadia 3.6L V6 Engine Oil Change Guide
How to change the motor oil and replace the filter in a 2009 to 2016 GMC Acadia with the 3.6L LLT V6 engine.

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2016 Acadia 3.6L V6
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Engine Oil Filler Cap
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Twist Off Counterclockwise

This automotive maintenance tutorial was specifically written to assist owners of the first generation (2009, 2010, 2011, 2012, 2013, 2014, 2015 & 2016) GMC Acadia equipped with the 3.6 liter LLT V6 engine in changing the motor oil and replacing the oil filter.

Owners of other General Motors vehicles such as the Buick Verano, Regal, LaCrosse, Cascada, Encore, Enclave, Envision, GMC Canyon, Sierra 1500, Terrain, Yukon, Denali, Savana, Spark, Sonic, Cruze, Malibu, Impala, Volt, Camaro, Corvette, SS, Trax, Equinox, Traverse, Tahoe, Suburban, Colorado, Silverado and Express may also find these DIY instructions to be helpful.

The items needed to complete this procedure include a floor jack, two jack stands (or automotive ramps), a 15mm socket with a 3/8" drive ratcheting wrench, a used oil catch container, an automotive funnel,  a new oil filter and 6 US quarts (5.7L) of new SAE 5W-30 oil.

A few compatible replacement oil filters with their part numbers are as follows: Mobil 1 M1-212, Royal Purple 20-500, Purolator L22500, K&N PS-2011, Hastings LF641, Motorcraft FL500S, ACDelco PF63E, Fram PH10575, Wix 57045, Pennzoil HPZ-173, Royal Purple 20-500, Champion COS10060, Bosch L3502 and Mann # ML 1049.

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Lift Out Oil Dipstick
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Raise Front of SUV
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Silver Metal Oil Pan
The first few steps are to warm up the engine for a few minutes, park the SUV on a level surface and then shut off the engine.

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

Engage the emergency / parking brake and chock both sides of the rear wheels to prevent the vehicle from moving.

Open the hood, twist off the oil filler cap in the counterclockwise direction and lift up the yellow plastic handled oil dipstick an inch or two.

Removing the oil filler cap and pulling up the dipstick will help prevent a vacuum from forming and also allow almost all of the old oil to drain out.

Raise the front of the SUV with a floor jack and securely support it with at least two jack stands.

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15mm Oil Drain Bolt
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Used Oil Catch Container
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Loosen Counterclockwise
Slide under the engine bay of the SUV with the used oil catch container, the 15mm socket and a 3/8" drive ratcheting wrench.

Place the used oil catch basin to just below the oil drain bolt.

Loosen the oil drain bolt by turning it counterclockwise.

Be careful when you remove the oil drain bolt. The old oil might still be hot enough to burn your fingers.

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Drain Out Old Oil
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Tighten Oil Drain Bolt
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Oil Filter Location
Allow the old oil to drain out for at least a few minutes.

If the oil drain bolt is equipped with a crush washer, inspect it and replace it if necessary.

New crush washers can be purchased at a Chevrolet, GMC, Cadillac or Buick dealership or at your local auto parts store.

Spin in the oil drain bolt by hand a few turns in the clockwise direction to prevent it from becoming cross threaded.

Tighten the oil drain bolt with the 15mm socket and 3/8" drive ratcheting wrench to just past hand tight or about 20 to 25 ft-lbs of torque.

The best place to access the old oil filter is from the top of the engine bay.



 

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White Canister Style Filter
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Twist Off Counterclockwise
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Lisle Oil Filter Wrench
The oil filter is located near the alternator.

Slide the used oil catch basin to just below the old oil filter's location.

Twist off the old oil filter in the counterclockwise direction.

If you have trouble loosening the old oil filter, you may need to use an oil filter wrench such as the Lisle 63600.

I recommend buying the Mobil 1 M1-212 oil filter since it has excellent reviews on Amazon.

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Dip Finger In New Oil
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Lubricate Rubber O-Ring
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Twist On New Oil Filter
Dip your pinky finger in to some new SAE 5W-30 oil and lubricate the rubber o-ring gasket on the new oil filter.

Lubricating the o-ring gasket will help the new oil filter form a better seal and make it easier to remove it during the next oil change.

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

Spin on the new oil filter in the clockwise direction to about 1/4 to 1/2 turn past hand tight.

Do not over tighten the oil filter or use an oil filter wrench to tighten it. Over tightening the oil filter may damage it or the rubber o-ring and/or cause an oil leak to develop.

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

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Insert Automotive Funnel
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Pour In New SAE 5W-30
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Replace Oil Filler Cap
Insert the automotive funnel in to the oil filler hole and slowly pour in about 5 to 5 1/2 quarts of the engine's 6 quart total capacity for an oil change with filter replacement.

It is far better to have slightly less oil than necessary in an engine than to over fill it. Running an engine that has been over filled with oil may result in sluggish performance, damage to seals or gaskets and possible damage to other components.

Temporarily replace the oil filler cap by spinning it on in the clockwise direction. Push the oil dipstick down in to place.

Run the engine for a few minutes, turn it off, and allow it to rest for at least 5 to 10 minutes while the new oil flows down to the oil pan.

Pull out the yellow handled dipstick, wipe it clean, re-insert it and pull it out again to check the oil level.

If necessary, slowly add in more oil and re-check the dipstick until the level reaches at or near the top of the crosshatched area on the tip which indicates the "Full" or "Max" level.

You may not need to pour in the entire 6 quarts of new oil depending on how long you allowed the old oil to drain out.

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Pull Out Oil Dipstick
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Check Engine Oil Level
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Replace Oil Dipstick
Pull out the yellow handled dipstick, wipe it clean, re-insert it and pull it out again to check the oil level.

If necessary, slowly add in more oil and re-check the dipstick until the level reaches at or near the top of the crosshatched area on the tip which indicates the "Full" or "Max" level.

You may not need to pour in the entire 6 quarts of new SAE 5W-30 oil depending on how long you allowed the old oil to drain out.

To reset the engine oil life system, follow these steps: turn the ignition to the On/Run position with the transmission in Park, press the trip odometer reset button until "oil life remaining" is on the display, then press and hold the reset button until "oil life remaining" changes to 100%. You'll hear three chimes and the "change engine oil soon" message will turn off.

For Acadia vehicles with the DIC (driver information center) repeat the steps above except by pressing the "vehicle information button" to select the "oil life remaining" screen and then hold the button to reset it to 100%.

Be sure to record the oil change in your SUV's service records.

It would be a good idea to check your driveway, garage or parking spot for fresh spots of oil over the new few days which may indicate an oil leak from the drain bolt or the new filter.

For more, check out my other 2007-2016 GMC Acadia DIY Repair & Maintenance Guides.
 

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