Your Subaru relies on a variety of fluids to keep it running smoothly and efficiently. From engine oil to transmission fluid, using the right products can make a big difference in your vehicle’s performance and longevity. But with so many options on the market, how do you know which fluids are best for your Subaru?
Key takeaway: Choosing the correct fluids and following Subaru’s maintenance recommendations will help maximize your vehicle’s lifespan, improve performance, and prevent costly repairs. In this guide, we’ll break down the essential fluids your Subaru needs and how to choose the best ones.
Engine Oil
Engine oil lubricates your Subaru’s engine, reduces friction, and prevents overheating. Using the right type and changing it at the proper intervals is essential for long-term engine health. Subaru recommends:
- Synthetic 0W-20 or 5W-30 oil for most modern models, depending on your engine type. Synthetic oil provides better protection and performance, especially in extreme temperatures.
- Regular oil changes every 6,000 miles or six months, whichever comes first, to keep your engine clean and efficient.
Skipping oil changes or using the wrong oil can lead to engine wear, sludge buildup, and reduced fuel efficiency.
Transmission Fluid
Your Subaru’s transmission fluid keeps gears shifting smoothly and prevents overheating. The right fluid type depends on whether you have a manual or automatic transmission.
- CVT Fluid: If your Subaru has a continuously variable transmission (CVT), it requires Subaru High Torque CVT fluid. Using non-approved fluids can cause damage and void your warranty.
- Manual Transmission Fluid: Subaru manual transmissions require 75W-90 gear oil for proper lubrication and protection.
- Fluid change intervals vary, but most Subarus need a transmission fluid service between 30,000 and 60,000 miles depending on driving conditions.
If you experience rough shifting, slipping gears, or delayed acceleration, your transmission fluid may need servicing.
Coolant
Coolant, also known as antifreeze, regulates engine temperature and prevents overheating. Subaru requires a super coolant specifically formulated for its engines, which lasts up to 11 years or 137,500 miles before needing a full replacement. However, regular coolant checks and top-offs are essential to ensure optimal performance.
Using the wrong coolant can lead to corrosion, leaks, and engine overheating. If you notice low coolant levels or temperature fluctuations, have your system inspected as soon as possible.
Brake Fluid
Brake fluid is essential for a responsive and reliable braking system. Subaru vehicles require DOT 3 or DOT 4 brake fluid, which absorbs moisture over time and should be replaced every 30,000 miles or two years. Signs that your brake fluid may need changing include a soft or spongy brake pedal, longer stopping distances, or a burning smell after heavy braking.
Ignoring brake fluid maintenance can lead to decreased braking performance and potential safety risks.
Power Steering Fluid
Power steering fluid ensures smooth and effortless steering, making it easier to maneuver your Subaru. Most models require Subaru ATF-HP fluid or a compatible synthetic ATF fluid. Low or dirty power steering fluid can cause stiffness in the steering wheel and unusual noises when turning. If you notice difficulty steering, it’s time to have your fluid checked.
Windshield Washer Fluid
While not essential to your Subaru’s mechanical performance, windshield washer fluid improves visibility and safety. Using an all-season or winter-grade washer fluid prevents freezing in colder months and keeps your windshield clear in all weather conditions.
Keep your Subaru in top shape with the right fluids
Using the right fluids in your Subaru is one of the easiest ways to maintain its performance and longevity. Regular fluid checks and timely replacements will help prevent costly repairs and keep your vehicle running smoothly for years to come.
If you need a fluid inspection, flush, or replacement, Suburb Service is here to help. Our Subaru experts use manufacturer-approved fluids to ensure your vehicle gets the best care possible. Schedule your service today athttps://suburbservice.net/ or call (206) 203-2263.