The Subaru Forester has built its name as a tough, practical, and long-lasting SUV. Many proud owners drive their Foresters past 200,000 miles, proving how dependable this vehicle can be. But getting there requires mindful care and timely maintenance.
Reaching high mileage is not just about good fortune. It depends on looking after small things before they grow into costly issues. The Forester responds well to attention, and with easy fixes, it continues running smoothly well beyond the 200k mark.
One of the most important habits is changing the engine oil on time. Oil keeps the engine parts clean and lubricated. Skipping oil changes can cause friction, heat, and damage. Fresh oil is simple but makes a massive difference.
The cooling system is another area that keeps the Forester reliable. Old hoses, coolant, or a weak radiator can lead to overheating, which ruins the engine. Regular coolant flushes and hose inspections keep the temperature stable and safe.
As mileage adds up, spark plugs and wires wear out. These small parts affect starting, fuel economy, and smooth performance. Replacing them every few years ensures the Forester fires up quickly and uses fuel more efficiently.
Timing belts, if not replaced, can fail suddenly and destroy the engine. Subaru owners should pay attention to the replacement schedule. Even if the belt looks fine, changing it after high mileage adds peace of mind and engine protection.
Transmission care is equally vital. Transmission fluid helps the gearbox shift smoothly. Over time, fluid gets dirty and loses effectiveness. By checking and replacing it, drivers avoid slipping gears, jerks, and expensive repairs down the road.
Suspension parts like shocks and struts naturally wear after thousands of miles. When replaced, they restore handling, ride comfort, and safety. A smooth ride makes driving more enjoyable while protecting other parts from excess stress.
Brakes should never be ignored, especially on older vehicles. Worn pads, thin rotors, or old brake fluid make stopping less effective. Regular checks and replacements ensure reliable braking power, which is essential for both safety and confidence.
Older Subarus often develop small oil leaks around gaskets or seals. These may seem minor but can lower oil levels and harm the engine. Fixing leaks early prevents bigger problems and keeps the motor in better shape.
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1) Change the Engine Oil Regularly
Engine oil is often called the lifeblood of a car, and for good reason. It lubricates moving parts, reduces friction, cools the engine, and helps prevent wear over time. In a Subaru Forester that has already crossed 200,000 miles, regular oil changes become even more critical.
By this stage, the engine has endured years of heat cycles, internal pressure, and metal-on-metal contact. Clean oil ensures the motor continues to perform smoothly instead of wearing down prematurely.
When oil is not changed on schedule, it begins to break down and lose its protective qualities. Dirt, sludge, and carbon deposits accumulate inside the engine. This thick, dirty oil no longer flows easily, leading to friction and overheating.
Over time, these conditions can cause permanent damage to key engine parts like bearings, pistons, and valves. That’s why owners who want their Foresters to last beyond 200k miles should never delay oil changes. It’s one of the cheapest yet most powerful steps you can take to extend engine life.
Another important decision is the type of oil you use. High-mileage synthetic blends are often the best choice for an older Forester. These oils contain special additives that help reduce leaks, condition aging seals, and fight sludge buildup.
They also perform better under extreme temperatures, keeping the engine stable whether you’re driving in summer heat or winter cold. Investing a few extra dollars in high-quality oil pays off through improved performance and protection.
Oil filters also play a big role in engine health. A clogged or cheap filter won’t catch dirt and particles effectively, which means contaminants will continue circulating through the engine. Always replace the filter at every oil change. Using a Subaru-recommended filter or a reliable aftermarket brand ensures the system stays clean and free-flowing. Skipping this small step can undo the benefits of fresh oil.
The benefits of regular oil changes go beyond just extending engine life. They also improve fuel efficiency, reduce emissions, and keep your Forester feeling responsive on the road.
An engine that runs on clean oil doesn’t have to work as hard, which means smoother acceleration and better mileage. Considering the low cost of oil compared to engine repairs, this is truly the smartest investment any high-mileage Subaru owner can make.
Changing your Forester’s oil on time is the foundation of long-term reliability. It may seem like a routine chore, but it’s the difference between an engine that fails early and one that confidently surpasses 200,000 miles.
2) Keep the Cooling System in Check
The cooling system is one of the most important parts of keeping a Subaru Forester running reliably after 200,000 miles. Its job is to control engine temperature, preventing overheating during hot weather and keeping the motor from freezing in cold conditions.
Without proper cooling, even a strong engine can suffer serious damage in a short time. High mileage engines are more vulnerable, so paying attention to this system is essential for long-term reliability.
Coolant, also known as antifreeze, is at the heart of the system. Over time, coolant loses its ability to regulate temperature and protect against rust. Old coolant can become acidic, eating away at metal parts inside the radiator, water pump, and heater core. Flushing the system and adding fresh coolant every few years is an easy way to keep things working properly.
Hoses and clamps are another area that often cause trouble as a car ages. Rubber becomes brittle with years of heat cycles and pressure. A small crack in a hose can lead to a coolant leak, which quickly causes overheating.
Checking hoses for soft spots, bulges, or cracks and replacing them when worn is a simple fix that saves the engine from much bigger problems. It is also wise to check clamps to ensure they hold hoses tightly and prevent leaks.
The radiator plays a huge role in keeping the Forester cool. Dust, dirt, and debris often build up on the radiator fins, blocking airflow. Cleaning the radiator surface and ensuring the cooling fans are working properly will keep the system efficient.
If the radiator itself develops leaks or becomes corroded inside, replacing it is usually more affordable than facing major engine repairs caused by overheating. A clean, functional radiator is key to surviving long highway drives or hot summer traffic.
The water pump should not be ignored either. It keeps coolant flowing throughout the engine. On high-mileage vehicles, the water pump may start leaking or lose efficiency.
3) Replace Old Spark Plugs and Wires
Spark plugs may look like small, simple parts, but they play a big role in keeping your Subaru Forester’s engine running smoothly. They create the spark that ignites the air and fuel mixture inside the engine.
Without a strong, clean spark, the engine struggles to start, wastes fuel, and loses power. After 200,000 miles, spark plugs and their connecting wires often show signs of wear, making replacement a very important step for long-term reliability.
The wires or ignition coils that deliver power to the spark plugs also age with time. Heat and vibration slowly wear down their insulation, causing weak or inconsistent sparks.
If you notice rough idling, poor fuel economy, or hesitation while accelerating, worn wires or coils could be part of the problem. Replacing these components along with spark plugs ensures that the ignition system works as it should, giving the engine the consistent spark it needs.
Choosing the right spark plugs for a high-mileage Forester is important. Subaru often recommends platinum or iridium plugs because they last longer and perform better than standard copper plugs.
For vehicles past 200,000 miles, using high-quality plugs is worth the extra investment. They provide reliable ignition, resist buildup, and extend the time between replacements. Pairing them with durable wires or coils further strengthens the system.
Replacing spark plugs and wires is also one of the more affordable maintenance steps you can take. It usually costs far less than major engine repairs but provides noticeable benefits immediately.
The engine runs more efficiently, starts quicker, and responds better on the road. These small improvements add up to a smoother driving experience and can extend the life of other components connected to the ignition and fuel systems.
4) Inspect and Change the Timing Belt
The timing belt is one of the most important components in your Subaru Forester’s engine. Its job is to keep the crankshaft and camshaft moving in perfect sync. This precise timing allows the valves and pistons to operate smoothly together.
If the timing belt fails, the engine loses synchronization instantly, which can cause catastrophic internal damage. For a Forester that has already crossed 200,000 miles, inspecting and replacing the timing belt on schedule is one of the most essential maintenance steps.
The typical replacement interval for a Subaru Forester’s timing belt is around 100,000 miles. If your vehicle has already passed 200,000 miles and the belt has not been changed recently, it should be replaced immediately.
Even if it looks fine on the outside, belts degrade with age, heat, and stress. Cracks, missing teeth, or stretching are all warning signs, but sometimes belts fail without visible damage. Regular replacement ensures peace of mind and prevents disaster.
It is also smart to replace related components when the timing belt is changed. The water pump, tensioner, and idler pulleys all work alongside the belt. If one of these fails, it can cause the belt to slip or break.
Doing all these replacements together saves labor costs since the engine is already open. This bundled approach is common among Subaru owners and is considered best practice.
Drivers often notice symptoms when a timing belt is wearing out, though not always. Strange ticking noises from the engine, difficulty starting, or sudden misfires can be signs of a failing belt. However, waiting for symptoms is risky.
The timing belt is a part that you should never ignore, especially once your Forester has gone past 200,000 miles. Inspecting it regularly and replacing it on time protects the engine from the worst kind of failure.
5) Check the Transmission Fluid
The transmission is one of the most complex and expensive parts of any vehicle, and the Subaru Forester is no exception. It is responsible for transferring power from the engine to the wheels and making sure the car shifts gears smoothly. Without proper care, the transmission can develop serious issues that cost thousands to repair.
One of the easiest and most effective ways to protect it, especially after 200,000 miles, is by checking and maintaining the transmission fluid regularly.
Transmission fluid serves several purposes. It lubricates moving parts, keeps the transmission cool, and helps gears engage smoothly. Over time, this fluid breaks down due to heat, friction, and contamination.
When the fluid becomes dirty or low, the transmission has to work harder, which leads to rough shifting, slipping gears, or strange noises. For a high-mileage Forester, keeping this fluid clean is essential to avoid major breakdowns.
Checking transmission fluid is a straightforward task. The fluid should be inspected for level, color, and smell. Healthy fluid is usually pink or red and has a slightly sweet odor.
Dark, burnt-smelling fluid is a clear sign that it needs to be replaced. If the level is too low, it can mean there is a leak, which should be repaired before simply adding more fluid. Ignoring leaks only leads to bigger problems down the road.
When replacing transmission fluid, it is important to use the type recommended by Subaru. CVTs in particular are very sensitive to fluid type, and using the wrong one can cause serious damage.
A professional service may include flushing the old fluid and replacing the filter, ensuring the transmission is clean and ready for more miles. Though it costs more than an oil change, it is still far cheaper than transmission replacement.
The benefits of fresh transmission fluid are easy to notice. Shifts become smoother, the car accelerates without hesitation, and there is less noise during driving.
It also helps extend the life of other transmission components, which is especially important when the vehicle is already past 200,000 miles. Regular checks give drivers confidence that their Forester will remain reliable for both city driving and long highway trips.
Checking and replacing transmission fluid may not seem exciting, but it is one of the smartest steps to keep a Subaru Forester reliable at high mileage. By taking care of this often-overlooked system, you prevent costly repairs and keep the car performing smoothly for years to come.
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6) Maintain the Suspension
The suspension system is what keeps your Subaru Forester stable, comfortable, and safe to drive. It connects the wheels to the body and absorbs bumps, potholes, and rough road conditions.
After more than 200,000 miles, many of the suspension components are likely worn out, which affects ride quality, handling, and even safety. Regularly maintaining the suspension ensures the Forester continues to drive smoothly and reliably.
One often-overlooked area is wheel alignment. As the suspension ages, alignment naturally drifts out of balance. This can cause the vehicle to pull to one side or the steering wheel to sit off-center.
A simple alignment service corrects this issue, making steering more precise and reducing stress on suspension parts. Checking alignment whenever new tires or suspension components are installed is a smart habit.
Maintaining the suspension not only improves comfort but also enhances safety. A worn-out suspension makes the vehicle less stable in emergency maneuvers, such as swerving to avoid obstacles.
It can also increase stopping distances and reduce control during wet or icy conditions. Since the Forester is often used for outdoor adventures and rough terrain, having a strong suspension is even more important.
7) Keep the Brakes Fresh
Brakes are one of the most important safety systems on any vehicle, and the Subaru Forester is no exception. After 200,000 miles, the braking system has gone through countless stops, heavy loads, and possibly tough weather conditions.
Worn brakes not only reduce safety but also place stress on other parts of the vehicle. Keeping the brakes fresh is essential if you want your Forester to remain reliable and safe for many more miles.
Tires also play a role in braking performance. Even with new pads and rotors, worn or poorly inflated tires reduce stopping power. Pairing a healthy braking system with good tires ensures the shortest possible stopping distance.
Keeping the brakes fresh provides peace of mind on every drive. It not only improves safety but also protects other systems. For example, worn brakes force the transmission and suspension to absorb extra stress during stops.
By replacing parts on time, you avoid these ripple effects. Considering how affordable regular brake maintenance is compared to the cost of an accident, this fix should always be a top priority.
8) Watch for Oil Leaks
Oil leaks are a common issue in older Subaru Foresters, especially once they pass 200,000 miles. Subaru engines are known for developing small leaks around seals and gaskets as the rubber and metal parts wear out.
While these leaks may seem minor at first, they can quickly grow into bigger problems if ignored. Keeping an eye out for oil leaks and fixing them early is one of the smartest ways to protect a high-mileage Forester.
Driving with low oil is one of the fastest ways to damage an engine. Oil lubricates moving parts and prevents friction. If levels drop too low because of leaks, the engine can overheat, seize, or wear out prematurely.
Replacing a few gaskets costs far less than rebuilding or replacing an entire motor. That is why paying attention to oil spots under your vehicle or unusual burning smells under the hood is so important.
Oil leaks can also affect other systems. For example, leaking oil may drip onto the exhaust, creating smoke or even a fire hazard in extreme cases. It can also soften rubber hoses and belts, shortening their lifespan.
Leaks that reach the alternator or other electrical components may cause performance issues. Fixing leaks promptly keeps not only the engine but the entire vehicle in better condition.
High-mileage oils and seal conditioners can help reduce the risk of leaks in older vehicles. These products are designed with additives that keep seals flexible and fill tiny gaps, reducing seepage.
Watching for oil leaks is a simple but powerful way to extend the life of a Subaru Forester beyond 200,000 miles. Small leaks are much cheaper and easier to fix than major engine problems caused by neglect.
By staying alert to signs like spots on the ground, burning smells, or low oil levels, you protect your vehicle from unnecessary wear and keep it reliable for many more miles.
9) Protect the Exhaust System
The exhaust system plays a crucial role in keeping your Subaru Forester reliable, efficient, and safe to drive. It directs harmful gases away from the engine and cabin, reduces noise, and helps the vehicle meet emissions standards.
After 200,000 miles, the exhaust system has endured years of heat, moisture, and road conditions, which means it is likely to develop problems if not maintained. Protecting this system is an important step in keeping a high-mileage Forester dependable.
Exhaust leaks not only make the vehicle louder but also reduce performance and fuel economy. Leaks near the engine, such as in the exhaust manifold or gaskets, can affect the sensors that measure airflow and emissions.
This leads to poor fuel mixture, rough idling, or even a check engine light. Catching these leaks early saves money by avoiding more serious engine or sensor problems. Repairing or replacing small sections is far cheaper than waiting until the whole system fails.
Another important part of the exhaust system is the catalytic converter. Its job is to clean harmful gases before they exit the tailpipe. Over time, catalytic converters can become clogged or fail, especially in high-mileage vehicles.
A failing converter may cause sluggish acceleration, reduced fuel economy, or strong sulfur-like smells. Since replacing a converter can be expensive, keeping the engine well-maintained with clean oil, fresh spark plugs, and no misfires is the best way to protect it from damage.
Regular inspections during oil changes help catch small leaks early. Using quality replacement parts when repairs are needed ensures the system continues working as designed.
Protecting the exhaust system is not just about reducing noise. It improves safety, keeps emissions under control, and ensures the Subaru Forester runs efficiently well past 200,000 miles.
By watching for rust, fixing leaks early, and maintaining related components, you keep this important system strong and reliable for many more miles of driving.
10) Care for the Battery and Alternator
The battery and alternator are at the heart of your Subaru Forester’s electrical system. They work together to power everything from the headlights and radio to the starter motor and engine computer. Without them, the car simply will not run.
After 200,000 miles, these parts have likely gone through several replacements, but keeping them in good shape remains critical to reliability. Caring for both ensures the Forester continues starting easily and powering all electrical systems without failure.
High-mileage Foresters benefit from occasional battery and alternator testing. Many auto shops offer free or low-cost checks that measure voltage and charging strength.
This helps identify weak components before they fail. Preventive testing is especially useful before long trips or during extreme weather, when electrical systems are under the most stress.
The battery and alternator may not seem as exciting as the engine or suspension, but they are essential for keeping a Subaru Forester reliable past 200,000 miles.
Regular testing, clean connections, and timely replacement keep the electrical system healthy. With strong power delivery, your Forester will continue to start easily, run smoothly, and support every system needed for safe and dependable driving.
