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Buick LaCrosse 3.6L V6 Engine Oil Change Guide
How to change the motor oil and oil filter in a 2nd generation 2010 to 2016 Buick LaCrosse with the 3.6L V6 engine.

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2016 LaCrosse 3.6L V6
Oil Filler Cap & Dipstick
Twist Off Counterclockwise
This automotive maintenance tutorial was specifically written to assist owners of the second generation (2010, 2011, 2012, 2013, 2014, 2015 & 2016) GM Buick LaCrosse sedan in changing the motor oil and replacing the filter on the LFX 3.6 liter V6 engine.

Owners of other General Motors vehicles such as the Chevrolet Impala, Monte Carlo, Malibu, Spark, Sonic, Cruze, Volt, SS, Camaro, Caprice, Corvette, Trax, Equinox, Traverse, Tahoe, Suburban, Colorado, Silverado, Buick Verano, Regal, Cascada, Encore, Enclave, Envision, GMC Canyon, Sierra, Terrain, Acadia, Yukon, Savana, Cadillac CT6, ATS-V, ATS, ELR, CTS, XTS, XT5, SRX, Escalade and Holden Commodore may also find these DIY instructions to be helpful.

The tools and other 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 basin, an automotive funnel and 6 U.S. quarts (5.7L) of new SAE 5W-30 oil.


A few compatible replacement oil filters with their part numbers include the following: Mobil 1 M1-212, Royal Purple 20-500, Fram PH10575, Wix 57060, Purolator PL22500, Bosch 3502 and Mann Filter ML 1049.
Pull Up Dipstick
Raise Front of Car
Engine Oil Pan
The first steps are to warm up the engine for a few minutes, park the car on a level surface and turn off the ignition.

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 place wheel chocks on both sides of the rear wheels to prevent the car from moving.

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

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

The silver metal oil drain bolt is located on the rear passenger corner of the silver metal oil pan. The bolt head faces back towards the rear of the car.

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

Be careful when you remove the oil drain bolt. The old oil might still be hot enough to burn your fingers depending on how long you warmed up the engine.

Loosen the oil drain bolt by turning it counterclockwise with the 15mm socket and the 3/8" drive ratcheting wrench.

Draining Out Old Oil
Replace Oil Drain Bolt
Slide Basin Forward
Allow the old oil to drain out for at least a few minutes or until the flow slows to just an occasional drip.

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

Wipe clean the oil drain hole and re-insert the oil drain bolt. Spin it in a few turns by hand in the clockwise direction to prevent it from becoming cross threaded.

Tighten the drain bolt in the clockwise direction to just past hand tight or about 20 ft-lbs of torque.

Slide the used oil catch basin forward to just below the oil filter, which is situated horizontally and located on the front of the engine.


Oil Filter - Front of Engine
Twist Off Counterclockwise
Dip Finger In New Oil
I found it easiest to access the old oil filter from the top of the engine bay.

Twist off the old oil filter in the counterclockwise direction.

If you have trouble loosening the old oil filter, use a strap oil filter wrench.

I normally use and recommend the excellent Lisle 63600 oil filter wrench, but it didn't fit well since the oil filter is so close to the radiator fan housing.

Allow the oil from the oil filter receptacle to drain out for at least a minute or two.

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

Dip your pinky finger in to some new oil and lubricate the rubber o-ring on the new oil filter.

Lubricating the rubber o-ring gasket will help it form a better seal, prevent oil leaks and also make it easier to remove during the next oil change.

Lubricate Rubber O-Ring
Twist On New Oil Filter
Lower Car From Stands
Twist on the new oil filter in the clockwise direction to about 1/4 to 1/3 turn past hand tight.

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

Carefully lower the car from the jack stands by using the floor jack.

Insert Automotive Funnel
Pour In New SAE 5W-30 Oil
Replace Oil Filler Cap
Insert the automotive funnel in to the oil filler hole.

The LFX 3.6L V6 engine's total capacity for an oil change with filter replacement is 6.0 U.S. quarts (or 5.7L) of SAE 5W-30 oil.

It is far better to have slightly less oil than necessary in an engine than to run an engine that has been over filled.

Running an engine that has been over filled may lead to sluggish performance or damage to gaskets and gaskets.

Slowly pour in only about 5 to 5.5 U.S. quarts of the new oil in to the funnel.

Temporarily replace the oil filler cap by twisting it on in the clockwise direction and push down the dipstick.

Pull Out Dipstick
Check Dipstick Oil Level
Replace Dipstick
Start the engine and allow it to warm up for a few minutes. Turn off the ignition and allow the new oil to drain down to the oil pan for at least 5 to 10 minutes.

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

If necessary, slowly pour in more oil and repeatedly check the level on the dipstick until it reaches just at or below the upper hole in the dipstick which indicates the "Full" or "Maximum" line.

You may not need to pour in the entire 6 U.S. quarts (or 5.7 liters) new oil for the level to reach the "Full" line.

Replace the dipstick and double check that the oil filler cap is tight.

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

For more, check out my other 2010-2016 Buick LaCrosse DIY Repair & Maintenance Guides.

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