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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 Chevrolet SuburbanOil Type & Capacity
OEM spec from the factory service manual for the FL, 4WD, Gas variant.
Quick Answer
Oil Type
$API - SAE 0W-20
Capacity (w/ Filter)
8.00 QTS.
7.57 L
Variant
FL, 4WD, Gas
Note: Engine oil meeting the dexos1 specification of the proper SAE viscosity grade. ACDelco dexos1 Synthetic Blend is recommended.
Do not add anything to the oil. The recommended oils meeting the dexos1 specification are all that is needed for good performance and engine protection.
Engine oil system flushes are not recommended and could cause engine damage not covered by the vehicle warranty.
This vehicle's factory manual
2018 Chevrolet Suburban: confirm the engine, trim, or drivetrain to open the available repair and diagnosis sections.
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 Chevrolet Suburban
Frequently Asked Questions
- What type of oil does a 2018 Chevrolet Suburban take?
- The 2018 Chevrolet Suburban requires API - SAE 0W-20. The exact spec may vary slightly by engine variant — this page shows the OEM recommendation for the FL, 4WD, Gas configuration.
- How much oil does a 2018 Chevrolet Suburban need?
- The 2018 Chevrolet Suburban takes 8.00 QTS. (7.57 L) of engine oil with the filter replaced.
- Can I use synthetic oil in my 2018 Chevrolet Suburban?
- Yes — synthetic oil that meets the API - SAE 0W-20 specification is acceptable and often preferred for better protection and longer change intervals.
- What happens if I use the wrong oil in my 2018 Chevrolet Suburban?
- Using oil that does not meet the API - SAE 0W-20 specification can reduce engine protection, increase wear, and potentially void warranty coverage. Always use oil that meets the OEM spec.