How long will a 2018 Subaru Legacy last?

A well-maintained 2018 Subaru Legacy can reasonably reach well over 200,000 miles, with many owners reporting 250,000 miles or more. Actual longevity depends on how the car is cared for, how it’s driven, and environmental conditions.

This article looks at what typically determines a Legacy’s lifespan, what most owners can expect in terms of mileage, and practical steps to maximize longevity. It draws on manufacturer guidance, reliability data, and owner experiences to provide a current, evidence-based view for potential buyers and current owners alike.

Factors that influence a Legacy’s longevity

The lifespan of a 2018 Legacy is shaped by a combination of maintenance discipline, driving habits, and environmental factors. The following elements commonly affect how long the car remains reliable on the road.

• Regular, timely maintenance (oil changes, fluid replacements, filter changes) according to Subaru’s schedule.


• Driving conditions and usage patterns (highway cruising tends to be gentler on wear than frequent short trips and heavy city driving).


• Climate and exposure to road salt or harsh moisture, which can accelerate rust and corrosion if not addressed.


• Care for the CVT and transmission components, including appropriate fluid changes and adherence to service intervals.


• Quality of repairs and the availability of good replacement parts, especially for aging components.


• Past accident history and impact from previous repairs that might affect long-term reliability.

In practice, diligent maintenance and responsible ownership tend to correlate with longer service life, while skipped services and aggressive driving can shorten it.

What a typical lifespan looks like for a 2018 Legacy

For the 2018 model year, most owners who keep up with maintenance report solid longevity. A common expectation is that the Legacy can reach 200,000 miles or more, with many examples approaching 250,000 miles and beyond under good care. Real-world results vary, but the model’s reputation for durable all-wheel-drive practicality supports strong long-term performance when maintenance is prioritized.

The exact mileage achievable depends on how the car has been treated over its life, including service history, climate, and driving style. Prospective buyers of used 2018 Legacies should review maintenance records closely and consider a pre-purchase inspection to assess remaining life expectancy based on current condition.

Maintenance that helps maximize longevity

Keeping a Legacy on the road for many years hinges on following an attentive maintenance plan. The next list outlines key areas to prioritize in order to extend the car’s life.

• Adhere to the owner's manual maintenance schedule, with particular attention to oil changes and filter replacements using the recommended grade of oil.


• Maintain the CVT with the manufacturer’s recommended transmission fluid changes and inspections, since transmission health strongly influences long-term reliability.


• Rotate tires and inspect brakes regularly to avoid uneven wear and ensure safe stopping power as components age.


• Flush or replace coolant and other cooling system fluids at recommended intervals to protect the engine from overheating and corrosion.


• Inspect and replace timing-chain-related components if necessary (Subaru engines in this era use timing chains, but tensioners and guides wear over time).


• Keep the battery, belts, hoses, and seals in good condition to prevent unexpected failures.


• Address rust prevention and undercarriage protection if the vehicle is exposed to salted roads or humid environments.

Adhering to these maintenance practices, along with prompt attention to any unusual noises, leaks, or performance changes, can significantly influence how long the Legacy lasts.

What to consider if you’re buying a used 2018 Legacy

When evaluating a used Legacy, the following considerations can help you estimate future reliability and potential replacement needs.

• Maintenance history: Look for a complete service record, especially for oil changes, CVT fluid service, and cooling-system work.


• Ownership pattern: Favor cars with consistent service and fewer short trips, which can stress components more than steady highway driving.


• Pre-purchase inspection: Have a trusted mechanic inspect the engine, CVT, suspension, brakes, and rust-prone areas to gauge remaining life.


• Current condition: Check for signs of CVT issues (slipping, shuddering), oil leaks, unusual noises, or excessive wear on brakes and tires.


• Recalls and service notices: Ensure all open recalls or service campaigns have been completed by the previous owner.

Armed with thorough documentation and a professional inspection, you can better judge how long a specific used 2018 Legacy may continue to perform well.

Bottom line

With thoughtful maintenance and careful driving, a 2018 Subaru Legacy is capable of lasting into the 200,000-mile range and beyond. The key to achieving that longevity is sticking to the recommended service schedule, addressing issues promptly, and choosing a well-documented used example if you’re buying pre-owned.

Summary

The 2018 Subaru Legacy is designed for durability, and its longevity is largely a function of maintenance, driving conditions, and care. Expect 200,000 miles or more with diligent service, and many examples may reach 250,000 miles or higher. To maximize lifespan, follow the manufacturer’s maintenance schedule, monitor the CVT health, and obtain a thorough pre-purchase inspection if buying used. In short, with proper care, the 2018 Legacy can be a long-lasting member of your garage.

Can a Subaru Legacy last 300,000 miles?

Subaru engines are renowned for their reliability and longevity, often lasting between 200,000 and 300,000 miles with proper maintenance.

What is considered high mileage for a Subaru Legacy?

High-mileage Legacy owners often note wear on suspension components (e.g., bushings, struts), exhaust systems, and wheel bearings after the 150,000-mile mark. CVT servicing becomes important for post-2010 models, while older Legacys may require head gasket inspections around 120,000 to 150,000 miles.

How many miles can a 2018 Subaru Legacy last?

200,000 miles
With proper maintenance, Legacy models can easily last well beyond 200,000 miles, providing years of dependable service. Outback: The Subaru Outback is a rugged and versatile crossover SUV that's built to withstand the demands of daily driving and outdoor adventures lasting well beyond 200,000 miles.

Is the Subaru Legacy 2018 a good car?

The 2018 Subaru Legacy is praised for its standard all-wheel drive, safety features like the EyeSight system, and a comfortable, spacious interior, making it a top performer in its class for those prioritizing reliability and all-weather capability. However, reviewers note that the base four-cylinder engine can feel underpowered, especially for highway passing, and the base engine's fuel economy is good, but the more powerful six-cylinder option is less efficient. Some reviewers also mention that the interior design and materials could be more appealing compared to some competitors.
 
Pros

• Standard All-Wheel Drive: This is a major advantage, providing excellent traction and control in various weather conditions, which is a rare feature in its class. 
• Safety: The Legacy is equipped with a host of available safety features, including the optional EyeSight driver-assist suite, and has received high safety ratings. 
• Comfortable and Spacious: The interior is noted for being roomy for both front and rear passengers, with comfortable seats and a smooth, quiet ride. 
• Reliability and Resale Value: The Legacy has a strong reputation for reliability, durability, and good resale value. 
• Good Fuel Economy (with 2.5L engine): The standard 2.5L engine achieves respectable fuel economy, particularly on the highway. 

You can watch this video to learn more about the 2018 Subaru Legacy's safety features: 58sCNET CarsYouTube · Feb 21, 2018
Cons

• Weak Base Engine: The 2.5-liter four-cylinder engine is considered underpowered and slow for highway passing. The more powerful 3.6-liter engine is an option, but it's still not as quick as many competitors' upgraded engines and is less fuel-efficient. 
• Plain Design: The exterior design is often described as anonymous or uninspired. 
• Interior Plastics: Some reviews point out the use of hard and cheap-feeling plastics in some areas of the cabin, which can detract from the overall feel. 
• Seat Bolstering: For some reviewers, the seats lacked sufficient support for long trips, though others found them very comfortable. 
• Potential Minor Issues: Some owners have reported isolated issues such as oil consumption or battery problems. 

This video discusses some minor issues with the 2018 Subaru Legacy's interior: 46sFamily WheelsYouTube · Dec 13, 2017