Oil
- Viscosity
- 5W-30
- Oil type
- Full Synthetic
- Capacity (with filter)
- 5 qt
- Capacity (without filter)
- 4.6 qt
OEM notes: dexos1 Gen 2
2018 Buick Enclave Maintenance & Specs
Everything you need to maintain your 2018 Buick Enclave — oil specs, maintenance schedule, recalls, and more.
The 2018 Buick Enclave 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 3, 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 2018 Buick Enclave
- 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
Transmission Fluid
Buy →- Type
- Dexron VI
- Capacity
- 3.5 qt
- Change interval
- 60,000 mi
Brake Fluid
Buy →- DOT type
- DOT 3
- Change interval
- 45,000 mi
Coolant
Buy →- Type
- Dex-Cool
- Color
- Orange
- Capacity
- 6.5 qt
- Change interval
- 120,000 mi
Power Steering Fluid
Buy →- Type
- ATF Dexron III
Differential Fluid (rear)
Buy →- Type
- 75W-90 GL-5
- Capacity
- 2 qt
- Change interval
- 60,000 mi
Differential Fluid (rear)
Buy →- Type
- 75W-90 GL-5
- Capacity
- 2 qt
- Change interval
- 60,000 mi
Parts & specifications
Spark Plugs
- Type
- Iridium
- Gap
- 0.040
- Quantity
- 4
- Change interval
- 100,000 mi
Battery
- Group size
- 48
- CCA
- 615
Tires
- Size
- 245/60R18
- 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.
Towing & Payload
Max Towing Capacity
5,000 lbs
Max Payload
1,280 lbs
Curb Weight
4,400 lbs
GVWR
5,700 lbs
Max Tongue Weight
500 lbs
Hitch Class
III
Source: manufacturer
Estimated Current Value
Original MSRP
$30,000
Private Party Value
$9,405 – $10,395
Dealer Retail Value
$10,890 – $12,375
Trade-In Value
$8,415 – $9,405
Depreciation
67%
Estimated values assume average condition and mileage for vehicle age.
Source: estimated
Technical Service Bulletins807
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 Enclave
Find oil, filters, and maintenance parts for the 2018 Buick Enclave 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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