The 2020 GMC Terrain is a compact SUV available with two turbocharged engine options: a fuel-efficient 1.5L turbo and a more powerful 2.0L turbo. Both engines are designed for efficiency and performance, but they require precise oil specifications to maintain long-term reliability.
Using the correct engine oil type, oil capacity, and service interval is essential for protecting the turbocharger system, preventing sludge buildup, and ensuring smooth engine performance.
2020 GMC Terrain Oil Type
The correct oil type depends on the engine configuration:
- SAE 0W-20 Full Synthetic (1.5L Turbo engine)
- SAE 5W-30 Full Synthetic (2.0L Turbo engine)
- GM dexos1 Gen 3 approved oil required
- API SP certified synthetic oil recommended
Best Choice: Always use GM dexos-approved full synthetic oil to protect the turbocharger and improve engine life.
2020 GMC Terrain Oil Capacity
Oil capacity varies depending on engine and drivetrain configuration.
Oil Change Interval
- Normal Driving: 7,500 miles or 12 months
- Severe Driving: 3,000–5,000 miles
- Towing / High Heat: 5,000–7,500 miles
Oil Filter Information
- OEM Filter: ACDelco PF64 / PF63E (varies by engine)
- Always replace oil filter with every oil change
2020 GMC Terrain Oil Change Cost
DIY Cost
$45 – $90 (oil + filter)
Service Center Cost
$100 – $200 depending on location
How to Change Oil (Step-by-Step)
- 1.5L: 4.2–5.3 quarts
- 2.0L: 5.7–6.0 quarts
Common Engine Problems
- Oil consumption in 1.5L turbo engine (some units)
- Turbo wear due to poor oil quality
- Timing chain wear from delayed oil changes
- Carbon buildup in direct injection engines
Signs You Need an Oil Change
- Engine noise or ticking
- Reduced fuel economy
- Oil life monitor warning
- Dark or dirty oil
- Burning oil smell
Maintenance Tips
- Always use dexos1 approved synthetic oil
- Do not exceed 7,500-mile intervals regularly
- Replace oil filter every service
- Check oil monthly for turbo protection
Frequently Asked Questions (FAQ)
What oil does a 2020 GMC Terrain use?
It uses 0W-20 for the 1.5L engine and 5W-30 for the 2.0L turbo engine.
How much oil does a 2020 GMC Terrain take?
It takes between 4.2 and 6.0 quarts depending on engine type.
How often should oil be changed?
Every 7,500 miles under normal driving conditions.
Is synthetic oil required?
Yes, GM dexos1 full synthetic oil is required.
Final Thoughts
The 2020 GMC Terrain is a turbocharged SUV that depends heavily on high-quality synthetic oil. Proper oil type, correct capacity, and timely changes are essential for maintaining performance and preventing engine wear.
Quick Summary
- Oil Type: 0W-20 / 5W-30 Synthetic
- Oil Capacity: 4.2 – 6.0 Quarts
- Oil Interval: 7,500 Miles
- Best Practice: Always use dexos-approved oil