Keeping your Subaru in top condition means understanding the importance of its cooling system, particularly the coolant. The coolant, also known as antifreeze, plays a critical role in regulating engine temperature and preventing it from overheating. But just how often should you change the coolant in your Subaru? In this article, we’ll break down the factors that influence coolant change intervals and why it’s essential for your vehicle’s long-term health.
The Role of Coolant in Your Subaru’s Engine
Your Subaru’s engine operates at high temperatures, which can lead to overheating without a properly functioning cooling system. Coolant circulates through the engine, absorbing excess heat and dissipating it through the radiator. It also protects against freezing in colder months, making it essential year-round. Over time, however, coolant can lose its effectiveness. When this happens, it can lead to overheating, engine damage, and potentially costly repairs. Regularly changing the coolant is one of the easiest ways to keep your engine running smoothly and avoid unnecessary engine trouble.
Subaru Coolant Change Interval
Subaru recommends changing the coolant in most models every 100,000 miles or 10 years. This interval can vary slightly depending on the specific model and the type of coolant your vehicle uses. Some newer models, especially those with Subaru’s “long-life” coolant, can go longer without needing a change. It’s always best to consult your Subaru owner’s manual for precise recommendations for your specific model, as this will have the most accurate information regarding your vehicle’s service interval.
No matter the recommended interval, it’s always a good idea to keep an eye on your coolant level and condition, as contamination or leaks can deprive your cooling system of critical cooling capability long before you may expect service to be due.
Why Coolant Changes Are Important
There are a few key reasons why sticking to the recommended coolant change interval is essential for your Subaru:
Prevents Overheating: Old coolant loses its ability to regulate the engine’s temperature effectively. This can result in overheating, which can cause engine damage if left unchecked.
Protects Against Corrosion: Coolant also helps prevent rust and corrosion in the engine and radiator. Over time, coolant breaks down and becomes acidic, which can damage metal components in the engine. Regular changes ensure the coolant maintains its protective properties.
Improves Performance: Fresh coolant keeps the engine running at its optimal temperature. If the coolant is degraded or contaminated, the engine can run less efficiently, leading to poor performance and lower fuel efficiency.
Prevents Clogging: The coolant helps remove debris and scale that can accumulate in the engine’s cooling system. Over time, coolant can become contaminated with particles that block the flow of coolant, reducing the effectiveness of the system. Regular changes help maintain the flow and keep everything working properly.
Signs That Your Subaru Needs a Coolant Change
Even if you haven’t hit the 100,000-mile mark, it’s important to be aware of the signs that may indicate it’s time for a coolant change. These include:
- Overheating Engine
- Discolored or Sludgy Coolant
- Burnt Sugar Smell in the Cabin
- Low Coolant Levels
How to Check and Replace the Coolant in Your Subaru
Checking the coolant level is a relatively simple process. Here’s how you can do it yourself:
Ensure the Engine is Cool: Never check the coolant level when the engine is hot, as the radiator cap can cause scalding-hot antifreeze to spray up from the cap, potentially burning you.
Locate the Coolant Reservoir: In most Subaru models, the coolant reservoir is located near the radiator. The reservoir has a “Max” and “Min” line indicating the proper coolant levels.
Check the Color and Condition of the Coolant: Look for any discoloration, contaminants, or cloudy appearance in the coolant. If the coolant looks old or degraded, it may be time to replace it as contaminated coolant loses effectiveness and may cause corrosion of cooling system components.
Top Off or Replace the Coolant: If the coolant is low, you can add more to reach the “Max” line. However, if it’s time for a full replacement, it’s best to schedule an appointment with your trusted auto repair shop to perform a full coolant flush.
Cooling System Services in Boulder, Colorado
Regular coolant maintenance is vital for the longevity and performance of your Subaru. By changing the coolant at the manufacturer’s recommended interval, you’ll help avoid engine overheating, corrosion, and other potential issues that can lead to costly repairs down the road.
Contact the team at Super Rupair in Boulder for top-notch cooling system repair and services from our specially-trained technicians. We work on nothing but Subarus, so you can always have peace of mind that your vehicle is in the right hands! Give us a call or schedule online today!