Keeping your 2015 Subaru Forester running smoothly for years and miles to come boils down to a few key maintenance habits, and at the very top of that list is regular oil changes. It might seem like a simple task, but using the correct fluids and parts is what truly protects the heart of your vehicle—the engine. Knowing the precise specifications for your Forester ensures you’re giving it the best care possible, preventing costly repairs down the line.
If you’ve found yourself wondering about the exact 2015 Subaru Forester oil type and filter, you’re in the right place. Whether you’re a seasoned DIY enthusiast or a new owner just trying to understand your vehicle’s needs, this guide will walk you through everything you need to know. We’ll cover the recommended oil viscosity, capacity, the best filter options, and why sticking to Subaru’s guidelines is so important for your car’s unique boxer engine.
What Kind of Oil Does a 2015 Subaru Forester Need?
For all 2015 Subaru Forester models, Subaru officially recommends using synthetic 0W-20 motor oil. This recommendation holds true whether your Forester has the standard 2.5i engine or the more powerful 2.0XT turbocharged engine. The “0W” part of the rating indicates the oil’s viscosity (or thickness) at cold temperatures, allowing it to flow quickly and protect engine components during startup, which is when a significant amount of wear occurs. The “20” refers to its viscosity at the engine’s normal operating temperature, providing a protective film that is thin enough to maximize fuel efficiency while still being robust.
While 0W-20 is the primary recommendation, you might find in your owner’s manual that 5W-30 synthetic oil can be used as a substitute if 0W-20 is not available. However, it is always best to use 0W-20 for optimal performance and protection, especially in colder climates. The oil capacity for a 2015 Forester is approximately 5.1 quarts (4.8 liters) for a full oil and filter change. It’s always a good practice to check your dipstick after the change and running the engine for a minute to ensure the level is perfect.
Choosing the Right Oil Filter for Your Forester
An oil change isn’t complete without a new filter. The oil filter’s job is to trap contaminants, metal particles, and debris that can circulate through your engine and cause damage. Using a high-quality filter is just as important as using the correct oil. For the 2015 Forester, you have several excellent options.
The genuine OEM (Original Equipment Manufacturer) filter from Subaru, often a black Tokyo Roki filter, is a fantastic choice as it is specifically engineered for your vehicle. Aftermarket brands also offer reliable alternatives. Look for filters from reputable manufacturers like PurolatorONE, Bosch, WIX, or Fram Ultra Synthetic. When selecting a filter, ensure it is the correct thread size and has the proper bypass valve pressure rating for your Subaru’s engine. Sticking with a known, high-quality brand gives you peace of mind that your engine is well-protected.
Your Guide to the 2015 Subaru Forester Oil Type and Filter
Let’s put it all together in a simple, step-by-step guide. Changing your own oil can be a rewarding and cost-effective task.
Gather Your Supplies: You will need 5-6 quarts of synthetic 0W-20 oil, a new oil filter (compatible with the 2015 Forester), a new drain plug washer, a wrench set, a oil filter wrench, a funnel, a drain pan, and gloves.
Step-by-Step Process: First, safely jack up the vehicle and support it on jack stands. Place your drain pan beneath the oil drain plug, which is located on the bottom of the oil pan. Carefully remove the plug, allowing the old oil to drain completely. While it’s draining, you can remove the old oil filter—it’s located on the top of the engine, facing upward, which makes for a relatively clean job. Before installing the new filter, lightly lubricate the gasket with a bit of new oil and fill the filter about halfway with fresh oil to prevent a dry start. Screw on the new filter by hand until the gasket makes contact, then give it another three-quarter turn—do not overtighten. Reinstall the drain plug with its new washer, again being careful not to overtighten.
The Final Steps: Lower the vehicle and add the new oil through the filler cap on the top of the engine. Start by adding about 4.5 quarts, then check the dipstick, adding more gradually until the level is between the two marks. Start the engine and let it run for a minute, checking for any leaks around the filter and drain plug. Turn off the engine, wait a moment for the oil to settle, and do a final dipstick check to top off if necessary. Finally, don’t forget to reset your maintenance reminder light and properly recycle your used oil and old filter.
Why Sticking to the Schedule Matters
Subaru recommends an oil change interval of every 6,000 miles or 6 months under normal driving conditions. However, if you frequently take short trips, drive in extreme temperatures, or do a lot of stop-and-go or dusty driving, you may want to consider changing it more frequently, perhaps every 3,000 to 5,000 miles. Your vehicle’s oil is its lifeblood; it lubricates, cleans, cools, and protects the engine. Fresh oil reduces friction, helps maintain engine efficiency, and can even improve your gas mileage. Neglecting this simple service is one of the fastest ways to lead to premature engine wear.
In summary, giving your 2015 Subaru Forester the right care is straightforward. Always aim for synthetic 0W-20 oil, pair it with a high-quality filter, and adhere to a regular maintenance schedule. This consistent attention will help ensure your dependable Forester continues to be a trusted companion on all your adventures, protecting the unique boxer engine that gives it its character. Happy driving!