Buick Regal Engine Oil Specs
Engine oil type, capacity & service interval for the Buick Regal (2000–2020). Select your year below for full specifications.
Choose Regal year
Oil grade changes by year
Do not assume every Buick Regal year uses the same oil. Some years specify 0W-20 (years 2020, 2019, 2018, 2013, 2011) while others specify 5W-30 (years 2017, 2016, 2014, 2012, 2004, 2002, 2001) while others specify 5W-20 (years 2015) while others specify 10W-30 (years 2003, 2000). Select your exact year and engine configuration before buying oil.
Select Year – Buick Regal Engine Oil
15 years foundBuick Regal Engine Oil Specs by Year
All 15 years| Year | Engine | Oil Grade | Capacity | Interval | |
|---|---|---|---|---|---|
| 2020 | 2L 4-Cylinder | 0W-20 | 4.2 qt | 10,000 mi | View → |
| 2019 | 2L 4-Cylinder | 0W-20 | 4.2 qt | 7,500 mi | View → |
| 2018 | 2L 4-Cylinder | 0W-20 | 4.2 qt | 7,500 mi | View → |
| 2017 | 2.4L 4-Cylinder | 5W-30 | 4.7 qt | 7,500 mi | View → |
| 2016 | 2.4L 4-Cylinder | 5W-30 | 4.7 qt | 7,500 mi | View → |
| 2015 | 2.4L 4-Cylinder | 5W-20 | 4.5 qt | 5,000 mi | View → |
| 2014 | 2L 4-Cylinder | 5W-30 | 4.2 qt | 5,000 mi | View → |
| 2013 | 2L 4-Cylinder | 0W-20 | 4.5 qt | 5,000 mi | View → |
| 2012 | 2L 4-Cylinder | 5W-30 | 4.2 qt | 5,000 mi | View → |
| 2011 | 2L 4-Cylinder | 0W-20 | 4.5 qt | 7,500 mi | View → |
| 2004 | 3.8L 6-Cylinder | 5W-30 | 4.2 qt | 5,000 mi | View → |
| 2003 | 3.8L 6-Cylinder | 10W-30 | 6.0 qt | 5,000 mi | View → |
| 2002 | 3.8L 6-Cylinder | 5W-30 | 4.5 qt | 7,500 mi | View → |
| 2001 | 3.8L 6-Cylinder | 5W-30 | 4.5 qt | 5,000 mi | View → |
| 2000 | 3.8L 6-Cylinder | 10W-30 | 6.0 qt | 5,000 mi | View → |
Buick Regal Engine Oil Guide
The Buick Regal was produced from 2000 to 2020. This model typically uses 0W-20 full synthetic engine oil — a specification common to most Buick Reg-series vehicles.
Selecting the correct oil viscosity for your Buick Regal is essential. Using a grade that is too thin reduces protection at operating temperature, while too thick an oil impairs cold-start flow and reduces fuel economy. Always match the exact grade shown for your specific model year.
The recommended oil change interval for the Buick Regal is every 10,000 miles or 12 months. Under severe driving conditions — track use, towing, or frequent cold starts — shorten this interval by 25–30%.
When servicing your Buick Regal, always replace the oil filter at every oil change. Using a quality filter — such as Fram, Mobil 1, or OEM equivalent filters — ensures clean oil circulation through the engine block.
Oil change costs for the Buick Regal at a US dealership or local service center typically range from $60 to $110 for a standard synthetic blend or full synthetic service. DIY oil changes cost approximately $30–$65 in parts (oil + filter) and take about 30 minutes with the right tools.
Always consult your vehicle's owner's manual to confirm the exact specification for your specific trim and engine variant, as some Buick Regal configurations may have different requirements.
Always use the viscosity grade recommended in your vehicle's owner's manual to ensure proper lubrication and maintain warranty coverage.
Perform periodic dipstick checks to ensure proper oil levels, especially prior to long road trips or heavy load use.