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2020 Subaru Impreza Maintenance Schedule
- Generation
- GK/GT (5th gen)
- Engine
- 2.0L naturally aspirated flat-4 (FB20)
- Intervals
- 12
The 2020 Subaru Impreza (5th generation, GK sedan / GT 5-door) features a 2.0L FB20 flat-4 engine with a timing chain and standard Symmetrical All-Wheel Drive across all trims. Most trims use the Lineartronic CVT, while the base 2.0i was still available with a 5-speed manual. Its maintenance schedule emphasizes CVT fluid care and AWD system servicing alongside Subaru's boxer engine-specific requirements. This guide is designed for US-market owners seeking to maximize reliability and resale value through proper preventive maintenance.
Service Intervals
Where is your Impreza right now?
Type the odometer and the table below re-sorts by what's closest. It works from the reading alone — it can't see what you've already had done.
Est. costs are US-typical, in USD.
| Service | Interval | Est. Cost |
|---|---|---|
| Engine Oil & FilterSafety itemSubaru recommends synthetic 0W-20 oil; the FB20 boxer engine's horizontal layout makes timely changes essential to prevent oil starvation. | 6,000 mi / 6 mo | $45-$75 |
| Tire RotationSafety itemAWD systems wear tires unevenly if not rotated regularly; mismatched tread depths can damage the CVT and differentials. | 7,500 mi | $25-$50 |
| Cabin Air FilterReplace more frequently in dusty or high-pollen environments to maintain HVAC efficiency and air quality. | 12,000 mi / 12 mo | $20-$40 |
| Engine Air FilterInspect at every oil change; the FB20's naturally aspirated design benefits from unrestricted airflow for optimal fuel economy. | 30,000 mi | $25-$50 |
| Brake Fluid FlushSafety itemSubaru specifies DOT 3 or DOT 4 fluid replacement every three years to prevent moisture absorption and brake fade. | 36 mo | $80-$120 |
| Brake Pads & Rotor InspectionSafety itemInspect at every tire rotation; replacement typically needed at 40,000-60,000 miles depending on driving style and terrain. | 30,000 mi | $250-$450 |
| CVT Transmission FluidSafety itemCVT-equipped cars use Subaru's Lineartronic High Torque CVT fluid; inspect at 25,000-mile intervals. Under severe-duty use (towing, mountains, extreme heat), replace fluid at 60,000 miles. Under normal conditions, fluid replacement is typically not required but inspection is recommended. Manual-transmission cars use gear oil instead — inspect per the manual-transmission schedule. | 60,000 mi | $150-$250 |
| Engine Coolant FlushSubaru Super Coolant is long-life; first change at 11 years/137,500 miles, then every 6 years/75,000 miles thereafter. | 137,500 mi / 132 mo | $120-$180 |
| Spark PlugsIridium plugs on the FB20 require replacement at 60,000 miles per Subaru's maintenance schedule; boxer engine layout makes access labor-intensive. | 60,000 mi | $180-$280 |
| Rear Differential FluidRear differential fluid replacement at 30,000 miles under severe-duty driving conditions; normal use typically requires inspection but less frequent replacement. | 30,000 mi | $80-$120 |
| Battery Inspection & ReplacementTest annually after 3 years; Subaru's electrical system and CVT rely on stable voltage for proper operation. | 48 mo | $150-$250 |
| Brake Lines & Hoses InspectionSafety itemVisual inspection for cracks, leaks, or corrosion; replacement typically needed only if damage is found or after 10+ years. | 30,000 mi | $0-$50 |
2020 Subaru Impreza Oil Change Interval
The 2020 Subaru Impreza oil change interval is every 6,000 mi or 6 months, whichever comes first (estimated cost $45-$75). Subaru recommends synthetic 0W-20 oil; the FB20 boxer engine's horizontal layout makes timely changes essential to prevent oil starvation.
What Happens If You Skip It
- Neglecting CVT fluid changes can cause shuddering, slipping, and premature transmission failure requiring $4,000-$7,000 replacement.
- Delaying tire rotation on AWD models creates uneven tread wear that forces the CVT and differentials to work harder, risking expensive drivetrain damage.
- Skipping brake fluid flushes allows moisture buildup that corrodes ABS components and reduces braking performance in emergency stops.
- Ignoring spark plug replacement at 60,000 miles leads to misfires, poor fuel economy, and potential catalytic converter damage on the FB20 engine.
- Failing to change differential fluid causes increased wear on AWD components, leading to whining noises, vibration, and eventual differential failure.
- Overdue engine oil changes in the FB20 boxer engine accelerate piston ring wear and oil consumption, a known issue that worsens with neglect.
Common Issues at Higher Mileage — 2020 Subaru Impreza
Excessive oil consumption may develop in FB-family engines due to piston ring design; monitor oil level between changes and address early under warranty extension if applicable.
CVT judder or hesitation during acceleration can occur if fluid changes are delayed; early fluid service often prevents costly transmission replacement.
Front wheel bearing noise (humming or grinding) is common in AWD Subarus; replacement typically needed at 70,000-100,000 miles depending on road conditions.
Rear brake pads wear faster than fronts due to AWD weight distribution; inspect rears closely during routine brake checks.
CV axle boots may crack and leak grease, leading to clicking noises during turns; inspect boots at every service and replace before joint damage occurs.
Oxygen sensor failures can trigger check engine lights and reduce fuel economy; replacement is routine maintenance on high-mileage FB20 engines.
Common questions about the 2020 Subaru Impreza
How often does a 2020 Subaru Impreza need an oil change?
The 2020 Subaru Impreza oil change interval is every 6,000 mi or 6 months, whichever comes first (estimated cost $45-$75). Subaru recommends synthetic 0W-20 oil; the FB20 boxer engine's horizontal layout makes timely changes essential to prevent oil starvation.
What maintenance does a 2020 Subaru Impreza need?
The services not to skip on a 2020 Subaru Impreza: engine oil & filter every 6,000 mi / 6 mo; tire rotation every 7,500 mi; brake fluid flush every 36 mo; brake pads & rotor inspection every 30,000 mi; cvt transmission fluid every 60,000 mi. The table above lists every service with its interval and an estimated cost.
What goes wrong on a Subaru Impreza at higher mileage?
What owners report as the miles add up — 60,000+ mi: Excessive oil consumption may develop in FB-family engines due to piston ring design; monitor oil level between changes and address early under warranty extension if applicable. 80,000+ mi: CVT judder or hesitation during acceleration can occur if fluid changes are delayed; early fluid service often prevents costly transmission replacement. 70,000+ mi: Front wheel bearing noise (humming or grinding) is common in AWD Subarus; replacement typically needed at 70,000-100,000 miles depending on road conditions. 50,000+ mi: Rear brake pads wear faster than fronts due to AWD weight distribution; inspect rears closely during routine brake checks. 100,000+ mi: CV axle boots may crack and leak grease, leading to clicking noises during turns; inspect boots at every service and replace before joint damage occurs. 90,000+ mi: Oxygen sensor failures can trigger check engine lights and reduce fuel economy; replacement is routine maintenance on high-mileage FB20 engines.
