Estimated maintenance schedule for the 2018 Subaru Impreza
GarageHub's estimates for the 2018 Impreza, not the manufacturer's maintenance schedule.
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GarageHub estimates the 2018 Subaru Impreza oil change interval at every 6,000 mi or 6 months, whichever comes first (estimated cost $45-$75); this is not the manufacturer's figure, so check your owner's manual.
Service intervals
GarageHub estimates for the 2018 Subaru Impreza, not taken from the manufacturer's maintenance schedule. Check your owner's manual for the exact figures.
| Service | Every | Est. Cost | Status |
|---|---|---|---|
| Engine Oil & FilterSafety item | 6,000 mi / 6 mo≈ 9,500 km / 6 mo | $45-$75 | |
| Tire RotationSafety item | 7,500 mi≈ 12,000 km | $25-$50 | |
| Cabin Air Filter | 12,000 mi / 12 mo≈ 19,500 km / 12 mo | $15-$35 | |
| Engine Air Filter | 30,000 mi≈ 48,000 km | $20-$45 | |
| Brake Fluid ExchangeSafety item | 30,000 mi / 30 mo≈ 48,000 km / 30 mo | $80-$120 | |
| Brake Pads & Rotor InspectionSafety item | 30,000 mi≈ 48,000 km | $250-$450 | |
| CVT Fluid ReplacementSafety item | 60,000 mi≈ 97,000 km | $180-$300 | |
| Coolant Exchange | 137,500 mi / 132 mo≈ 221,000 km / 132 mo | $120-$180 | |
| Spark Plugs | 60,000 mi≈ 97,000 km | $150-$250 | |
| Rear Differential Fluid | 30,000 mi≈ 48,000 km | $70-$110 | |
| Battery Inspection & Cleaning | 30,000 mi / 24 mo≈ 48,000 km / 24 mo | $15-$40 |
≈ converted from the other unit and rounded.
Est. costs are US-typical, in USD.
What happens if you skip it
- Delaying CVT fluid changes beyond 60,000 miles can cause shuddering, slipping, and eventual transmission failure requiring $4,000-$7,000 replacement.
- Neglecting tire rotation on the AWD system leads to uneven tread wear that can damage the center differential and trigger drivetrain binding.
- Skipping brake fluid exchanges allows moisture buildup that corrodes the ABS module and brake calipers, leading to costly repairs and reduced stopping power.
- Ignoring rear differential fluid changes causes bearing wear and whining noise, eventually resulting in differential failure and loss of AWD functionality.
- Overdue spark plug replacement on the FB20 can cause misfires, catalytic converter damage, and reduced fuel economy due to incomplete combustion.
- Failing to maintain proper oil change intervals in the boxer engine accelerates valve train wear and can lead to oil consumption issues common in older FB-series engines.
Common issues at higher mileage
- 60,000+ mi
- CVT shudder or hesitation during acceleration, often resolved with fluid change but may indicate worn clutch packs in severe cases.
- 80,000+ mi
- Some FB-series engines have been reported to consume oil between changes; monitor the level between services and have it checked if consumption exceeds roughly 1 qt/1,000 mi. Stay on the specified 0W-20 unless a dealer advises otherwise.
- 70,000+ mi
- Front wheel bearing noise (humming or grinding) due to AWD system stress and road salt exposure in northern climates.
- 100,000+ mi
- EyeSight camera calibration drift or windshield-mounted sensor issues requiring recalibration after windshield replacement or alignment work.
- 90,000+ mi
- Rear differential fluid leaks from pinion seal or axle seals, often discovered during routine service as dark staining on the differential housing.
- 120,000+ mi
- Timing chain tensioner wear may produce rattling noise on cold starts; while the chain itself is durable, tensioner and guide replacement is preventive maintenance at high mileage.
Common questions about the 2018 Subaru Impreza
How often does a 2018 Subaru Impreza need an oil change?
GarageHub estimates the 2018 Subaru Impreza oil change interval at every 6,000 mi or 6 months, whichever comes first (estimated cost $45-$75); this is not the manufacturer's figure, so check your owner's manual.
What maintenance does a 2018 Subaru Impreza need?
GarageHub's estimate of the services not to skip on a 2018 Subaru Impreza: engine oil & filter every 6,000 mi / 6 mo; tire rotation every 7,500 mi; brake fluid exchange every 30,000 mi / 30 mo; brake pads & rotor inspection every 30,000 mi; cvt fluid replacement every 60,000 mi. These intervals are estimates, not the manufacturer's maintenance schedule. Check your owner's manual for the exact figures.
What goes wrong on a Subaru Impreza at higher mileage?
What owners report as the miles add up — 60,000+ mi: CVT shudder or hesitation during acceleration, often resolved with fluid change but may indicate worn clutch packs in severe cases. 80,000+ mi: Some FB-series engines have been reported to consume oil between changes; monitor the level between services and have it checked if consumption exceeds roughly 1 qt/1,000 mi. Stay on the specified 0W-20 unless a dealer advises otherwise. 70,000+ mi: Front wheel bearing noise (humming or grinding) due to AWD system stress and road salt exposure in northern climates. 100,000+ mi: EyeSight camera calibration drift or windshield-mounted sensor issues requiring recalibration after windshield replacement or alignment work. 90,000+ mi: Rear differential fluid leaks from pinion seal or axle seals, often discovered during routine service as dark staining on the differential housing. 120,000+ mi: Timing chain tensioner wear may produce rattling noise on cold starts; while the chain itself is durable, tensioner and guide replacement is preventive maintenance at high mileage.