2020 Subaru Ascent Maintenance Schedule
Here are the 2020 Subaru Ascent's service intervals, drawn from the manufacturer's published maintenance schedule — the key services, when each is due, and what each one does. Add your Subaru Ascentto your free BoxKitz garage to track exactly what's due based on your mileage and build a parts kit with price comparisons.
Service intervals
| Service | Every (km / mi) | Or every |
|---|---|---|
| Oil & Filter Change | 10,000 km / 6,000 mi0W-20. The 6-month clock matters for low-mileage drivers; severe use shortens the interval. | 6 months |
| Tire Rotation | 12,000 km / 7,500 mi | — |
| Engine Air Filter | 48,000 km / 30,000 mi | — |
| Cabin Air Filter | 19,000 km / 12,000 mi | 12 months |
| Spark Plugs | 96,000 km / 60,000 miNotably shorter than most makes — Subaru's boxer engines are due around 96,000 km / 60,000 mi. | — |
| CVT Fluid | —Inspected on the normal schedule; Subaru High Torque CVTF is replaced under severe use — many owners change it around 96,000 km / 60,000 mi. | — |
| Engine Coolant | 220,000 km / 137,500 miSubaru Super Coolant: first change at ~220,000 km / 137,500 mi or 11 years, then every 6 years. | 132 months |
| Brake Fluid | 48,000 km / 30,000 miEvery 3 years / ~48,000 km / 30,000 mi. | 36 months |
| Rear Differential Fluid (AWD) | —75W-90 gear oil; inspected on the normal schedule and changed under severe use / towing. | — |
Source: Subaru Warranty & Maintenance Booklet. Intervals are for normal service; severe-service driving shortens many of them.
Estimated annual maintenance cost
Here's roughly what it costs to keep a 2020 Subaru Ascent on its scheduled maintenance — doing it yourself versus paying a shop. Drag the slider to match how much you drive.
20,000 km (~12,500 mi) / year
Do it yourself
$120–$250
parts & fluids / year
At a shop
$350–$670
parts & labor / year
You save
~$100–$550
per year, DIY
See the breakdown
| Oil & Filter Change | 2.0×/yr | $80–$150/yr |
| Cabin Air Filter | 1.1×/yr | $15–$35/yr |
| Spark Plugs | every 5 yrs | $10–$25/yr |
| Brake Fluid | every 2 yrs | $5–$15/yr |
| Engine Air Filter | every 2 yrs | $5–$15/yr |
| Engine Coolant | every 11 yrs | $0–$5/yr |
| Tire Rotation | 1.7×/yr | $0–$0/yr |
Rough estimates in CAD for scheduled-maintenance parts and fluids, based on typical prices — not live retailer quotes, and your costs will vary. Wear/replacement items (brakes, tires, battery) and diagnostics aren't included.
Fluids & capacities
Capacities are "with filter" and vary by engine — check your Subaru Ascent's engine option below.
| Engine oil | 0W-20 full synthetic — 5.7 qt (5.4 L) |
| Engine coolant | Subaru Super Coolant (blue, long-life) |
| Spark plugs | Iridium, ~60,000 mi service life |
| CVT fluid | Subaru High Torque CVT Fluid |
| Rear differential (AWD) | 75W-90 GL-5 gear oil |
| Brake fluid | DOT 3 |
Confirm the grade and capacity against your owner's manual before servicing — figures can differ by trim, drivetrain and market.
What each service does
Oil & Filter Change
Subaru's boxer engines take 0W-20 full synthetic and are serviced every 10,000 km / 6,000 mi or 6 months.
Tire Rotation
Rotating tires keeps tread wear even — important on all-wheel-drive Subarus, where mismatched tires stress the AWD system.
Engine Air Filter
A clean air filter protects power and economy; replaced around 48,000 km / 30,000 mi.
Cabin Air Filter
Filters dust and pollen from the cabin air, roughly once a year.
Spark Plugs
Subaru specifies a shorter plug interval than most manufacturers. Fresh plugs keep the boxer engine running smoothly.
CVT Fluid
The Lineartronic CVT uses Subaru High Torque CVT Fluid; clean fluid is key to CVT longevity.
Engine Coolant
Subaru's long-life coolant is designed for a very long first interval before its protection needs renewing.
Brake Fluid
Brake fluid absorbs moisture, lowering its boiling point; Subaru replaces it every 3 years.
Rear Differential Fluid (AWD)
On Subaru's symmetrical AWD, the rear differential fluid protects the drivetrain; it's inspected rather than changed on a fixed interval.
These intervals are drawn from the 2020 Subaru Ascent's manufacturer maintenance schedule for normal service. Your vehicle's owner's manual remains the final authority, especially for "severe service" conditions like towing, short trips or dusty roads. BoxKitz links you straight to the manufacturer's manual and live recall data once you add the vehicle.
Other maintenance schedules
DIY guides
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