The 2018 Chevrolet Volt is a plug-in hybrid electric vehicle designed for maximum efficiency, combining electric driving with a gasoline-powered range extender engine. Although it spends most of its time in EV mode, the gas engine still requires proper oil maintenance.
Using the correct oil type and following the recommended service intervals ensures long engine life, smooth operation, and protection against fuel dilution and oxidation—common in hybrid engines.
2018 Chevy Volt Oil Type
The recommended engine oil for the 2018 Chevy Volt is SAE 0W-20 full synthetic oil that meets GM Dexos1 specification. This low-viscosity oil helps improve fuel efficiency and ensures proper lubrication during cold starts.
While some older references mention 5W-30, GM officially recommends 0W-20 for the 2016–2019 Volt generation (L3A 1.5L range extender engine).
Best Choice: SAE 0W-20 full synthetic Dexos1-approved oil (Mobil 1, Pennzoil Platinum, Valvoline Advanced).
2018 Chevy Volt Oil Capacity
The gasoline engine in the Chevy Volt requires a small amount of oil compared to traditional vehicles. Always check dipstick after filling.
Oil Filter Information
- OEM Filter: ACDelco PF64 / UPF64R
- Aftermarket Brands: Wix, Bosch, Fram, Mobil 1
- Recommendation: Replace oil filter at every oil change
Oil Change Interval
The Chevy Volt uses an intelligent Oil Life Monitor (OLM) system instead of a fixed mileage interval. Since the engine runs infrequently, time-based oil aging is also important.
2018 Chevy Volt Oil Change Cost
- DIY Oil Change: $35 – $60
- Independent Shop: $60 – $100
- Dealership: $100 – $150
Common Oil-Related Issues
- Oil aging due to low engine usage
- Fuel dilution in hybrid engine oil
- Oil oxidation over time
- Delayed oil change warnings
- Overfilling causing engine smoke
Maintenance Tips for Longer Engine Life
- Use only Dexos1 0W-20 full synthetic oil
- Change oil at least every 2 years even with low mileage
- Check oil level every 1,000–2,000 miles
- Replace oil filter at every service
- Run engine periodically to circulate oil
Frequently Asked Questions
What oil does a 2018 Chevy Volt use?
The 2018 Chevy Volt uses SAE 0W-20 full synthetic oil that meets GM Dexos1 specification.
How much oil does a 2018 Chevy Volt take?
It takes approximately 4.2 quarts of engine oil with filter change.
How often should Volt oil be changed?
Every 2 years or when the oil life monitor reaches 0%, whichever comes first.
Why does a hybrid car need oil changes?
Even in hybrids, the gasoline engine runs occasionally and oil degrades over time due to oxidation and fuel dilution.
Final Thoughts
The 2018 Chevy Volt may rely heavily on electric power, but proper engine oil maintenance is still essential for long-term reliability. Using high-quality 0W-20 synthetic oil and following the oil life monitor ensures optimal performance and engine protection.
Quick Summary
- Oil Type: SAE 0W-20 Dexos1 Synthetic
- Capacity: 4.2 Quarts
- Change Interval: 2 Years or OLM Reset
- Engine: 1.5L Range Extender