Common in turbocharged engines like the WRX; can be due to worn gaskets or seals.

Turbochargers can fail due to high stress and improper maintenance, leading to reduced power and efficiency.

Often caused by using lower octane fuel than recommended or issues with the ignition timing.

Can occur in various parts of the cooling system, including the radiator, hoses, or water pump, leading to overheating.

Can occur due to overheating or high engine stress, resulting in coolant and oil mixing and loss of compression.

A worn or broken timing belt/chain can lead to severe engine damage and misalignment of engine timing.

Dirty or clogged fuel injectors can cause poor engine performance and reduced fuel efficiency.

Ignition coils can fail, leading to misfires, rough idling, and difficulty starting the engine.

Faulty oxygen sensors can lead to poor fuel economy and increased emissions.

The 2018 Subaru WRX with a high-power engine is known for excessive oil consumption, which can lead to engine damage if not monitored and maintained properly.

The turbocharger in high-performance engines like the WRX can be prone to failure due to high stress, leading to reduced engine performance and potential costly repairs.

Direct-injection engines, such as the one in the WRX, can suffer from carbon buildup on the intake valves, causing rough idling, misfires, and reduced fuel efficiency.

Although Subaru has improved on this, earlier models were notorious for head gasket failures, and some issues may still persist in later models like the 2018 WRX.

High-performance engines generate a lot of heat, and the WRX's cooling system can sometimes struggle to keep up, leading to overheating issues.

High-revving engines like the WRX can experience rod bearing wear or failure, which can lead to severe engine damage if not addressed.

Fuel pumps and injectors in high-performance vehicles can sometimes fail prematurely, causing poor engine performance and starting issues.

Common in turbocharged engines like the WRX; can be due to worn gaskets or seals.

Turbochargers can fail due to high stress and improper maintenance, leading to reduced power and efficiency.

Often caused by using lower octane fuel than recommended or issues with the ignition timing.

Can occur in various parts of the cooling system, including the radiator, hoses, or water pump, leading to overheating.

Can occur due to overheating or high engine stress, resulting in coolant and oil mixing and loss of compression.

A worn or broken timing belt/chain can lead to severe engine damage and misalignment of engine timing.

Dirty or clogged fuel injectors can cause poor engine performance and reduced fuel efficiency.

Ignition coils can fail, leading to misfires, rough idling, and difficulty starting the engine.

Faulty oxygen sensors can lead to poor fuel economy and increased emissions.

Common in turbocharged engines like the WRX; can be due to worn gaskets or seals.

Turbochargers can fail due to high stress and improper maintenance, leading to reduced power and efficiency.

Often caused by using lower octane fuel than recommended or issues with the ignition timing.

Can occur in various parts of the cooling system, including the radiator, hoses, or water pump, leading to overheating.

Can occur due to overheating or high engine stress, resulting in coolant and oil mixing and loss of compression.

A worn or broken timing belt/chain can lead to severe engine damage and misalignment of engine timing.

Dirty or clogged fuel injectors can cause poor engine performance and reduced fuel efficiency.

Ignition coils can fail, leading to misfires, rough idling, and difficulty starting the engine.

Faulty oxygen sensors can lead to poor fuel economy and increased emissions.

Some 2018 Subaru WRX models with a 4-cylinder engine have been known to consume oil at a higher rate than normal, which can lead to engine damage if not monitored and maintained.

The turbocharger in the WRX can sometimes fail, leading to reduced engine performance and potentially costly repairs.

Coolant leaks can occur in the engine, which may cause the engine to overheat and lead to significant damage if not addressed promptly.

Direct injection engines, like the one in the 2018 WRX, can suffer from carbon buildup on the intake valves, which can affect performance and fuel efficiency.

Subaru engines have a history of head gasket problems, which can lead to coolant and oil leaks and overheating issues.

Issues with the timing belt or chain can cause engine misfires or complete engine failure if they break or slip.

In some cases, the rod bearings in the engine can wear out prematurely, leading to knocking noises and potential engine failure if not repaired.

Problems with the fuel pump can cause the engine to run poorly or not start at all.

Common in turbocharged engines like the WRX; can be due to worn gaskets or seals.

Turbochargers can fail due to high stress and improper maintenance, leading to reduced power and efficiency.

Often caused by using lower octane fuel than recommended or issues with the ignition timing.

Can occur in various parts of the cooling system, including the radiator, hoses, or water pump, leading to overheating.

Can occur due to overheating or high engine stress, resulting in coolant and oil mixing and loss of compression.

A worn or broken timing belt/chain can lead to severe engine damage and misalignment of engine timing.

Dirty or clogged fuel injectors can cause poor engine performance and reduced fuel efficiency.

Ignition coils can fail, leading to misfires, rough idling, and difficulty starting the engine.

Faulty oxygen sensors can lead to poor fuel economy and increased emissions.

Some 2018 Subaru WRX models with a 4-cylinder engine have been known to consume oil at a higher rate than normal, which can lead to engine damage if not monitored and maintained.

The turbocharger in the WRX can sometimes fail, leading to reduced engine performance and potentially costly repairs.

Coolant leaks can occur in the engine, which may cause the engine to overheat and lead to significant damage if not addressed promptly.

Direct injection engines, like the one in the 2018 WRX, can suffer from carbon buildup on the intake valves, which can affect performance and fuel efficiency.

Subaru engines have a history of head gasket problems, which can lead to coolant and oil leaks and overheating issues.

Issues with the timing belt or chain can cause engine misfires or complete engine failure if they break or slip.

In some cases, the rod bearings in the engine can wear out prematurely, leading to knocking noises and potential engine failure if not repaired.

Problems with the fuel pump can cause the engine to run poorly or not start at all.

The 2018 Subaru WRX with a high-power engine is known for excessive oil consumption, which can lead to engine damage if not monitored and maintained properly.

The turbocharger in high-performance engines like the WRX can be prone to failure due to high stress, leading to reduced engine performance and potential costly repairs.

Direct-injection engines, such as the one in the WRX, can suffer from carbon buildup on the intake valves, causing rough idling, misfires, and reduced fuel efficiency.

Although Subaru has improved on this, earlier models were notorious for head gasket failures, and some issues may still persist in later models like the 2018 WRX.

High-performance engines generate a lot of heat, and the WRX's cooling system can sometimes struggle to keep up, leading to overheating issues.

High-revving engines like the WRX can experience rod bearing wear or failure, which can lead to severe engine damage if not addressed.

Fuel pumps and injectors in high-performance vehicles can sometimes fail prematurely, causing poor engine performance and starting issues.

The 2018 Subaru WRX with a high-power engine is known for excessive oil consumption, which can lead to engine damage if not monitored and maintained properly.

The turbocharger in high-performance engines like the WRX can be prone to failure due to high stress, leading to reduced engine performance and potential costly repairs.

Direct-injection engines, such as the one in the WRX, can suffer from carbon buildup on the intake valves, causing rough idling, misfires, and reduced fuel efficiency.

Although Subaru has improved on this, earlier models were notorious for head gasket failures, and some issues may still persist in later models like the 2018 WRX.

High-performance engines generate a lot of heat, and the WRX's cooling system can sometimes struggle to keep up, leading to overheating issues.

High-revving engines like the WRX can experience rod bearing wear or failure, which can lead to severe engine damage if not addressed.

Fuel pumps and injectors in high-performance vehicles can sometimes fail prematurely, causing poor engine performance and starting issues.

The 2018 Subaru WRX with a high-power engine is known for excessive oil consumption, which can lead to engine damage if not monitored and maintained properly.

The turbocharger in high-performance engines like the WRX can be prone to failure due to high stress, leading to reduced engine performance and potential costly repairs.

Direct-injection engines, such as the one in the WRX, can suffer from carbon buildup on the intake valves, causing rough idling, misfires, and reduced fuel efficiency.

Although Subaru has improved on this, earlier models were notorious for head gasket failures, and some issues may still persist in later models like the 2018 WRX.

High-performance engines generate a lot of heat, and the WRX's cooling system can sometimes struggle to keep up, leading to overheating issues.

High-revving engines like the WRX can experience rod bearing wear or failure, which can lead to severe engine damage if not addressed.

Fuel pumps and injectors in high-performance vehicles can sometimes fail prematurely, causing poor engine performance and starting issues.

Common in turbocharged engines like the WRX; can be due to worn gaskets or seals.

Turbochargers can fail due to high stress and improper maintenance, leading to reduced power and efficiency.

Often caused by using lower octane fuel than recommended or issues with the ignition timing.

Can occur in various parts of the cooling system, including the radiator, hoses, or water pump, leading to overheating.

Can occur due to overheating or high engine stress, resulting in coolant and oil mixing and loss of compression.

A worn or broken timing belt/chain can lead to severe engine damage and misalignment of engine timing.

Dirty or clogged fuel injectors can cause poor engine performance and reduced fuel efficiency.

Ignition coils can fail, leading to misfires, rough idling, and difficulty starting the engine.

Faulty oxygen sensors can lead to poor fuel economy and increased emissions.

The 2018 Subaru WRX with a high-power engine is known for excessive oil consumption, which can lead to engine damage if not monitored and maintained properly.

The turbocharger in high-performance engines like the WRX can be prone to failure due to high stress, leading to reduced engine performance and potential costly repairs.

Direct-injection engines, such as the one in the WRX, can suffer from carbon buildup on the intake valves, causing rough idling, misfires, and reduced fuel efficiency.

Although Subaru has improved on this, earlier models were notorious for head gasket failures, and some issues may still persist in later models like the 2018 WRX.

High-performance engines generate a lot of heat, and the WRX's cooling system can sometimes struggle to keep up, leading to overheating issues.

High-revving engines like the WRX can experience rod bearing wear or failure, which can lead to severe engine damage if not addressed.

Fuel pumps and injectors in high-performance vehicles can sometimes fail prematurely, causing poor engine performance and starting issues.

Some 2018 Subaru WRX models with a 4-cylinder engine have been known to consume oil at a higher rate than normal, which can lead to engine damage if not monitored and maintained.

The turbocharger in the WRX can sometimes fail, leading to reduced engine performance and potentially costly repairs.

Coolant leaks can occur in the engine, which may cause the engine to overheat and lead to significant damage if not addressed promptly.

Direct injection engines, like the one in the 2018 WRX, can suffer from carbon buildup on the intake valves, which can affect performance and fuel efficiency.

Subaru engines have a history of head gasket problems, which can lead to coolant and oil leaks and overheating issues.

Issues with the timing belt or chain can cause engine misfires or complete engine failure if they break or slip.

In some cases, the rod bearings in the engine can wear out prematurely, leading to knocking noises and potential engine failure if not repaired.

Problems with the fuel pump can cause the engine to run poorly or not start at all.