One of the most important maintenance tasks is knowing and following the correct oil capacity and specifications.
This guide covers the exact oil capacity, recommended oil type, filter details, and practical tips for changing the oil in the 2022 Chevy 6.6L gas engine.
2022 Chevy 6.6 Gas Engine Oil Capacity
The 2022 Chevy Silverado HD and GMC Sierra HD with the 6.6L V8 gas engine (L8T) have an oil capacity of 8 quarts (7.6 liters) when changing the oil and filter.
GM recommends using dexos1-approved synthetic 5W-30 motor oil along with an ACDelco PF-63 oil filter to ensure proper lubrication, performance, and warranty compliance.
Maintaining the correct oil level is crucial for maintaining engine health, achieving optimal performance, and ensuring longevity.
Filling the correct amount is crucial. Underfilling can result in poor lubrication and overheating, while overfilling may lead to excess pressure, aeration of the oil, and potential engine damage.
Recommended Oil Type
For the 2022 6.6L L8T gas engine, dexos1-approved synthetic 5W-30 motor oil is recommended. This oil type offers:

- Excellent wear protection for moving engine components.
- Superior cold-start performance in lower temperatures.
- Resistance to thermal breakdown in high temperatures.
- Compliance with General Motors’ engine requirements, which helps keep the warranty intact.
Related Chevrolet Engine Oil Capacity Chart(Model A to Z)
Oil Filter Specifications
GM specifies the ACDelco PF-63 oil filter for the 6.6L gas engine. This filter is designed for the high-capacity lubrication system in heavy-duty trucks, ensuring that contaminants are captured effectively and oil flow remains consistent.
When replacing the filter, ensure it is properly lubricated with fresh oil before installation. This helps create a proper seal and prevents dry starts.
Related Best Synthetic Engine Oil(Top 5 Best in 2025)
Why Accurate Oil Filling Matters
1. Engine Protection
The oil lubricates internal components, reducing wear and preventing overheating. Too little oil means certain parts may run dry, while too much can cause foaming and reduced lubrication efficiency.
2. Performance and Efficiency
Correct oil levels ensure optimal performance. Excess or insufficient oil can lead to poor fuel economy and sluggish acceleration.
3. Warranty Compliance
Following the manufacturer’s oil recommendations helps protect your investment and keeps your vehicle within warranty coverage.
Related How Much Oil Does a 2015 Silverado 5.3 Engine Take
How to Change the Oil in a 2022 6.6L Gas Engine
Performing an oil change yourself can be straightforward if you follow these steps:
1. Warm Up the Engine
Run the engine for a few minutes so the oil flows more easily.
2. Drain the Old Oil
Place a drain pan under the oil pan and remove the drain plug. Let the oil fully drain.
3. Replace the Drain Plug Washer
Use a new crush washer to ensure a leak-free seal.
4. Install the New Filter
Lightly coat the rubber gasket of the new oil filter with fresh oil before installing it.
5. Add Fresh Oil
Pour in 8 quarts of dexos1 5W-30 synthetic oil.
6. Check the Level
Start the engine, let it run for a minute, then turn it off and check the dipstick. Add oil if necessary to bring it to the full mark.
Related 5.3 Chevy Engine Oil Capacity(For All Models Years)
Tips for a Better Oil Change Experience
- Use Quality Tools: A proper socket for the drain plug and an oil filter wrench make the process easier.
- Keep a Clean Workspace: Avoid contaminating fresh oil with dirt or debris.
- Dispose of Oil Responsibly: Take used oil to a recycling center or auto parts store.
- Track Your Oil Changes: Record the mileage and date of each oil change to stay on schedule.
Related Best Oil for High Performance Engines(Top 5 Best 2025)
Oil Change Interval
For normal driving conditions, the oil change interval is typically every 7,500 miles or as indicated by the Oil Life Monitoring System in your truck. If you frequently tow heavy loads, drive in dusty areas, or operate in extreme temperatures, consider changing the oil more frequently, around every 5,000 miles.
FAQs
How many quarts of oil does a 2022 6.6 gas engine take?
The 2022 6.6L V8 gas engine holds 8 quarts (7.6 liters) of oil when changing both the oil and filter.
How much oil does a 6.6 Chevy take?
A Chevy truck with the 6.6L V8 gas engine requires 8 quarts (7.6 liters) of oil including the filter.
What oil for Chevy 6.6 gas?
GM recommends dexos1-approved synthetic 5W-30 motor oil for the 6.6L gas engine to ensure optimal performance and protection.
How much oil does a 23 Sierra 2500 6.6 take?
The 2023 GMC Sierra 2500 with the 6.6L gas engine also takes 8 quarts (7.6 liters) of oil when the filter is replaced.
How many quarts of oil for a 2022 Chevy Silverado?
A 2022 Chevy Silverado HD with the 6.6L gas engine needs 8 quarts (7.6 liters) of oil with a filter change.
Final Thoughts
For the 2022 Chevy Silverado HD and GMC Sierra HD with the 6.6L V8 gas engine:
- Oil Capacity: 8 quarts (7.6 liters) with filter.
- Oil Type: dexos1-approved synthetic 5W-30.
- Filter: ACDelco PF-63.
Keeping your oil changes timely and accurate not only ensures engine longevity but also maintains the performance and reliability that heavy-duty truck owners depend on.
Whether you choose to change the oil yourself or take it to a professional, following these specifications will keep your 6.6L gas engine running smoothly for years to come.