How to Change Engine Oil on a 2015 Subaru Forester

Replacing engine oil and filter on a 2015 Subaru Forester 2.5i and 2.0 turbo. Applies to most Subaru Foresters with similar engines.

Tools:

• 17 mm socket and ratchet.
• Extensions and a breaker bar may be useful.
• Oil Drain Pan. I use Lisle Black Pan for its large capacity. 

Parts:

• Oil filter. I use Mobil 1 Performance Oil Filter. Alternatively, buy OEM for less here: Subaru 6 Pack Oil filters for 2011 and up. Legacy, Outback, Forester. Part number 15208AA15A

• Subaru oil drain plug washer/gasket. Subaru 803916010 Oil Drain Plug Washer Part number 803916010

• Synthetic motor oil 0W-20 for 2.5i and 5W-30 for 2.0i turbo.
• 0W-20 OEM here: Genuine Subaru SOA427V1315 Motor Oil 
• Castrol EDGE 0W-20 Extended Performance Synthetic Motor Oil - 1 Quart Bottle, (Pack of 6) 
• 5W-30 OEM here: Subaru SOA868V9285 Synthetic Motor Oil - 1 Gallon 
• Castrol EDGE Extended Performance 5W-30 Synthetic Motor Oil - 5 Quart 

• Subaru's owner manual says use 0W-20 for the 2.5i, however I used 5W-30 and haven't had any issues. 

• Drain Plug if necessary. 
• Fumoto F-108N Engine Oil Drain Valve for more convenient draining.

Recommended:

• Ramps, Funnel, Rags, Jack and Jack Stands.

Steps:  

• Warm up car to normal operating temperatures. 

• Optional: Jack Forester and place jack stands or drive up on ramps. RhinoRamps Vehicle Ramps (Pair, 12,000lb. GVW Capacity) 

• Open hood and remove the oil filler cap (Yellow cap below).

• Remove the oil filter (Black cylinder below) with TEKTON 12-Inch Oil Filter Pliers.

• Clean the filter housing cup so there is a clean mating surface for the new filter.

• Apply clean oil to rubber gasket on new oil filter. 

• Install new filter by hand. The owner's manual says one full rotation past hand tight. 

• Locate oil drain plug underneath car. The picture below shows the general location, plug is located in the opening below.

• Place drain pan underneath and loosen drain plug with a 17 mm socket. Careful, the oil will be hot. Let the oil drain for 15-30 minutes.

• Reinstall drain plug with new crush washer. Torque drain plug to 32 ft/lbs. 

• Pour in new engine oil. It is perfectly fine if you overfill a little bit.
• 4.8 liters/5.1 US Quarts for non turbo 2.5i engine.
• 5.1 liters/5.4 US Quarts for turbo 2.0i engine.

• Install oil filler cap, check for leaks in drain plug area.

• Drive Subaru around for a few minutes. Recheck drain plug for leaks. The oil filter housing cup may leak a little which is fine. 

Notes:
I have heard great things about Pennzoil Ultra Platinum 5W-30 Full Synthetic Motor Oil - 1 Quart, (Case of 6) so I will use that for the next oil change. So far, the Castrol EDGE 5W-30 has been doing very well.

I highly suggest WIX 57055 Oil Filter for its high bypass PSI, especially for turbo Subarus. The WIX filter is competitively priced and many enthusiasts prefer it over OEM filters.

The drain plug is at an angle and not pointed straight down. I recommend placing the pan directly where the plug is pointing.

I enjoy changing oil on the Forester because I don't have to remove any plastic panels to get to the drain plug or filter. The process is quick and straightforward.

Owners manual can be found here: 2015 Subaru Forester Manual




DIY applies to SJ Fourth Generation of Subaru Forester. 2012, 2013, 2014, 2015, 2016, 2017, 2018.

DIY: Infiniti QX4 & Nissan Pathfinder Oil Change

How to change engine oil and filter on the Infiniti QX4 and Nissan Pathfinder R50

• Loosen oil filler cap in engine bay.
• Remove plastic splash guard underneath the front of the QX4. The splash guard is held by eight 10mm bolts. There may be more than eight as they tend to fall out over time.

• Locate oil filter. View picture below for reference. 

• Place a drain pan underneath the oil filter. I recommend Lisle 17942 Black Pan - 4.5 Gallon Capacity for its large capacity and spout.

• Loosen the oil filter by turning it counter-clockwise with TEKTON 5866 12-Inch Oil Filter Pliers or Lisle 53500 Satndard Swivel Grip Oil Filter Wrench. Remove oil filter and drain oil into pan.

• Install new oil filter with a new washer/gasket. I recommend Mobil 1 M1-108 Extended Performance Oil Filter or K&N PS-1008 Pro Series Oil Filter. Take the time to clean the surface where the oil filter mates with the engine so there is a good seal. 

• Move oil drain pan underneath engine oil pan. Loosen and remove oil drain plug and let the oil drain. Be careful to not damage the pan when loosening drain plug and the oil may be very hot if the car has not cooled down. The drain plug is highlighted in orange.

• Install drain plug and washer around plug. I changed my drain plug because it has never been changed in over 100,000 miles. I bought Dorman 65263 AutoGrade Oil Drain Plug and  Dorman 097-134 Copper Oil Drain Plug Gasket - Fits M12, Pack of 10. I wouldn't use the plastic gasket that comes with the Dorman drain plug, buy a copper crush washer instead. 

• Pop open the hood and remove the oil fill cap.

• Add 5.25 quarts of engine oil. 
• The owner's manual says to fill with conventional motor oil. I use Castrol 03096 GTX 5W-30 Conventional Motor Oil - 5 Quart for every change. Check the oil dipstick to see if the amount of oil is within limits.

• Replace the engine oil cap when done.

• Drive the car around and check for oil leaks around the filter or drain plug. Reinstall the splash shield when done.  

• Check dipstick to see oil is within limits.

Notes:

Changing the engine oil and filter is very easy. You can save money by changing the oil yourself and make sure everything is done properly. You never know if the quick lube places are doing things correctly.

Dispose old oil at parts store or local landfill.

The owner's manual says to fill with conventional motor oil only, synthetic motor oil may cause leaks. I filled the QX4 with conventional oil and have had zero issues over the many years and miles. I certainly have not babied or kept the Q as a garage queen, just kept up with regular maintenance and oil changes and nothing engine or mechanical has needed fixing. Do not put non recommended synthetic oil into your QX4 or Pathfinder, you will be throwing money away and potentially cause damage.

How to Change Engine Oil on a 2015 Subaru Forester

Replacing engine oil and filter on a 2015 Subaru Forester 2.5i and 2.0 turbo. Applies to most Subaru models with similar engines.

Tools:

• 17 mm socket and ratchet.
• Extensions and a breaker bar may be useful.
• Oil Drain Pan. I use Lisle Black Pan for its large capacity. 

Parts:

• Oil filter. I use Mobil 1 Performance Oil Filter. Alternatively, buy OEM for less here: Subaru 6 Pack Oil filters for 2011 and up. Legacy, Outback, Forester. Part number 15208AA15A

• Subaru oil drain plug washer/gasket. Subaru 803916010 Oil Drain Plug Washer Part number 803916010

• Synthetic motor oil 0W-20 for 2.5i and 5W-30 for 2.0i turbo.
• 0W-20 OEM here: Genuine Subaru SOA427V1315 Motor Oil 
• Castrol EDGE 0W-20 Extended Performance Synthetic Motor Oil - 1 Quart Bottle, (Pack of 6) 
• 5W-30 OEM here: Subaru SOA868V9285 Synthetic Motor Oil - 1 Gallon 
• Castrol EDGE Extended Performance 5W-30 Synthetic Motor Oil - 5 Quart 

• Subaru's owner manual says use 0W-20 for the 2.5i, however I used 5W-30 and haven't had any issues. 

• Drain Plug if necessary. 
• Fumoto F-108N Engine Oil Drain Valve for more convenient draining.

Recommended:

• Ramps, Funnel, Rags, Jack and Jack Stands.

Steps:  

• Warm up car to normal operating temperatures. 

• Optional: Jack Forester and place jack stands or drive up on ramps. RhinoRamps Vehicle Ramps (Pair, 12,000lb. GVW Capacity) 

• Open hood and remove the oil filler cap (Yellow cap below).

• Remove the oil filter (Black cylinder below) with TEKTON 12-Inch Oil Filter Pliers.

• Clean the filter housing cup so there is a clean mating surface for the new filter.

• Apply clean oil to rubber gasket on new oil filter. 

• Install new filter by hand. The owner's manual says one full rotation past hand tight. 

• Locate oil drain plug underneath car. The picture below shows the general location, plug is located in the opening below.

• Place drain pan underneath and loosen drain plug with a 17 mm socket. Careful, the oil will be hot. Let the oil drain for 15-30 minutes.

• Reinstall drain plug with new crush washer. Torque drain plug to 32 ft/lbs. 

• Pour in new engine oil. It is perfectly fine if you overfill a little bit.
• 4.8 liters/5.1 US Quarts for non turbo 2.5i engine.
• 5.1 liters/5.4 US Quarts for turbo 2.0i engine.

• Install oil filler cap, check for leaks in drain plug area.

• Drive Subaru around for a few minutes. Recheck drain plug for leaks. The oil filter housing cup may leak a little which is fine. 

Notes:
I have heard great things about Pennzoil Ultra Platinum 5W-30 Full Synthetic Motor Oil - 1 Quart, (Case of 6) so I will use that for the next oil change. So far, the Castrol EDGE 5W-30 has been doing very well.

I highly suggest WIX 57055 Oil Filter for its high bypass PSI, especially for turbo Subarus. The WIX filter is competitively priced and many enthusiasts prefer it over OEM filters.

The drain plug is at an angle and not pointed straight down. I recommend placing the pan directly where the plug is pointing.

I enjoy changing oil on the Forester because I don't have to remove any plastic panels to get to the drain plug or filter. The process is quick and straightforward.

Owners manual can be found here: 2015 Subaru Forester Manual



DIY applies to SJ Fourth Generation of Subaru Forester. 2012, 2013, 2014, 2015, 2016, 2017, 2018.