Subaru Impreza WRX Sedan 2003 Manual

The recommended oil type for the 2003 Subaru Impreza WRX Sedan is 5W-30 synthetic oil. This helps ensure optimal engine performance and longevity.
It is recommended to replace the timing belt every 105,000 miles or 8 years, whichever comes first, to prevent potential engine damage.
Common signs include loss of power, unusual whining or whistling noises, excessive exhaust smoke, and increased oil consumption.
To improve fuel efficiency, ensure regular maintenance such as air filter and spark plug replacements, and keep tires properly inflated. Additionally, practice smooth acceleration and braking.
The recommended tire pressure for the 2003 Subaru Impreza WRX Sedan is 32 psi for the front tires and 29 psi for the rear tires.
Check the battery connections for corrosion, ensure the battery is charged, verify the starter and alternator functionality, and inspect the ignition system.
The recommended spark plugs are NGK PFR6G or equivalent, which are designed to withstand the high temperatures of the turbocharged engine.
To reset the check engine light, you can disconnect the battery for 15 minutes. However, it is crucial to address the underlying issue before resetting the light.
Inspect the coolant level and condition, radiator and hoses for leaks, thermostat, and ensure the radiator fans are functioning correctly.
Regularly check and change the differential fluids and ensure tires are of the same brand, model, and wear to prevent drivetrain stress.