Oil
- Viscosity
- 5W-30
- Oil type
- Full Synthetic
- Capacity (with filter)
- 5 qt
- Capacity (without filter)
- 4.6 qt
OEM notes: dexos1 Gen 2
2021 Buick Encore Maintenance & Specs
Everything you need to maintain your 2021 Buick Encore — oil specs, maintenance schedule, recalls, and more.
The 2021 Buick Encore takes 5W-30 Full Synthetic with a total capacity of 5 quarts (filter included). You’ll need a 15mm socket for the drain plug, torqued to 25 Nm. The OEM oil filter is the ACDelco PF64. Below you’ll find complete maintenance specs, fluid capacities, parts, and links to buy what you need.
Data last verified: May 1, 2026
Oil
5W-30
Full Synthetic
Buy on Amazon →
Capacity
5 qt
with filter
Drain plug
15 mm
25 Nm torque
Filter
PF64
ACDelco (OEM)
Buy on Amazon →
OEM spec: dexos1 Gen 2
Quick DIY Tips for the 2021 Buick Encore
- Torque your drain plug to 25 Nm (18 ft-lbs) to avoid leaks or stripped threads.
- Using the OEM filter (ACDelco PF64) is recommended for warranty compliance.
- Always use 5W-30 Full Synthetic as specified by Buick — using the wrong viscosity can void your powertrain warranty.
- Check the maintenance schedule below for your next service interval.
Filter options
Drain bolt & hardware
- Socket size
- 15 mm
- Thread size
- —
- Torque spec
- 25 Nm
- Gasket type
- Rubber O-ring (reusable)
Fluid specifications
Parts & specifications
Spark Plugs
- Type
- Iridium
- Gap
- 0.040
- Quantity
- 4
- Change interval
- 100,000 mi
Battery
- Group size
- 48
- CCA
- 615
Tires
- Size
- 215/55R17
- Front pressure
- 33 PSI
- Rear pressure
- 33 PSI
Air Filter
Cabin Air Filter
Brake Pads
Wiper Blades
Maintenance schedule
Select a mileage interval above to see scheduled maintenance items.
Estimated Current Value
Original MSRP
$30,000
Private Party Value
$13,680 – $15,120
Dealer Retail Value
$15,840 – $18,000
Trade-In Value
$12,240 – $13,680
Depreciation
52%
Estimated values assume average condition and mileage for vehicle age.
Source: estimated
Technical Service Bulletins386
Torque specifications
- lug nut
- 100 ft-lbs / 135.6 Nm
- spark plug
- 18 ft-lbs / 24.4 Nm
14mm thread, aluminum head
Save by doing it yourself
A shop typically charges $70–$140 for this service. Buy the parts yourself and save.
Shop Parts for the Buick Encore
Find oil, filters, and maintenance parts for the 2021 Buick Encore on Amazon.
Tools & supplies
Step-by-step guide
Detailed walkthrough with tips for first-timers.
Read guide →How often to change oil
Intervals, severe service, and what your car needs.
Read guide →Synthetic vs. conventional
Which oil type is right for your engine and budget.
Read guide →Have info for this vehicle?
Help fellow owners — submit specs from your owner's manual.
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