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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 Buick LacrosseOil Type & Capacity
OEM spec from the factory service manual for the Essence, 2.5L Eng VIN Z variant.
Quick Answer
Oil Type
$API - SAE 5W-20. SAE 0W-20 oil may be used as an alternative.
Capacity (w/ Filter)
5.00 QTS.
4.73 L
Variant
Essence, 2.5L Eng VIN Z
Note: Use only engine oil licensed to the dexos1 specification, or equivalent, of the proper SAE viscosity grade. ACDelco dexos1 Synthetic Blend is recommended.
This vehicle's factory manual
2018 Buick Lacrosse: 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 Buick Lacrosse
Maintenance Specs
Frequently Asked Questions
- What type of oil does a 2018 Buick Lacrosse take?
- The 2018 Buick Lacrosse requires API - SAE 5W-20. SAE 0W-20 oil may be used as an alternative.. The exact spec may vary slightly by engine variant — this page shows the OEM recommendation for the Essence, 2.5L Eng VIN Z configuration.
- How much oil does a 2018 Buick Lacrosse need?
- The 2018 Buick Lacrosse takes 5.00 QTS. (4.73 L) of engine oil with the filter replaced.
- Can I use synthetic oil in my 2018 Buick Lacrosse?
- Yes — synthetic oil that meets the API - SAE 5W-20. SAE 0W-20 oil may be used as an alternative. 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 Lacrosse?
- Using oil that does not meet the API - SAE 5W-20. SAE 0W-20 oil may be used as an alternative. specification can reduce engine protection, increase wear, and potentially void warranty coverage. Always use oil that meets the OEM spec.