Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2018 Buick EnclaveOil Type & Capacity
OEM spec from the factory service manual for the Avenir, AWD variant.
Quick Answer
Oil Type
$API - SAE 5W-30
Capacity (w/ Filter)
6.00 QTS.
5.67 L
Variant
Avenir, AWD
Note: Engine oil meeting the Dexos1 specification of proper SAE viscosity grade. ACDelco Dexos1 is recommended.
This vehicle's factory manual
The oil spec is above. This opens the fluids section of the 2018 Buick Enclave Avenir, AWD factory book.
Sister site: See this spec on WhatTypeOfOil.com — our quick oil type & capacity lookup for every vehicle.
What You'll Need
Related for Your 2018 Buick Enclave
Maintenance Specs
Frequently Asked Questions
- What type of oil does a 2018 Buick Enclave take?
- The 2018 Buick Enclave requires API - SAE 5W-30. The exact spec may vary slightly by engine variant — this page shows the OEM recommendation for the Avenir, AWD configuration.
- How much oil does a 2018 Buick Enclave need?
- The 2018 Buick Enclave takes 6.00 QTS. (5.67 L) of engine oil with the filter replaced.
- Can I use synthetic oil in my 2018 Buick Enclave?
- Yes — synthetic oil that meets the API - SAE 5W-30 specification is acceptable and often preferred for better protection and longer change intervals.
- What happens if I use the wrong oil in my 2018 Buick Enclave?
- Using oil that does not meet the API - SAE 5W-30 specification can reduce engine protection, increase wear, and potentially void warranty coverage. Always use oil that meets the OEM spec.