About 5.7 quarts of engine oil are required for a 2020 Chevy Blazer with the 3.6L V6, including the filter, during a standard oil change.
Official capacity and recommended oil
Chevrolet’s maintenance data for the 2020 Blazer equipped with the 3.6L V6 lists the engine oil capacity as 5.7 quarts with the filter. This is the standard fill amount used when performing a routine oil change.
Before the following list, note the key details you’ll want to have on hand when planning an oil change for this engine.
- Oil capacity: 5.7 quarts (with filter)
- Oil type: Dexos1 approved synthetic blend or full synthetic
- Common viscosity: 5W-30 (climate-dependent; consult the owner’s manual for your region)
- Oil filter: replaced with every oil change
In short, plan for roughly 5.7 quarts of oil per change, use Dexos1-approved oil, and replace the filter to maintain proper engine lubrication.
How to perform an oil change on the Blazer 3.6L
The following steps provide a typical procedure for changing the oil on a 2020 Blazer with the 3.6L V6. Always follow the specific instructions in your owner's manual and use the correct tools and safety practices.
- Assemble materials: 5.7 quarts of Dexos1 oil, a new oil filter, a drain pan, a funnel, gloves, and basic hand tools.
- Warm the engine to operating temperature to help drain more oil.
- Lift and secure the vehicle, then place a drain pan under the oil sump and remove the drain plug to drain the old oil completely.
- Remove the old oil filter, install the new filter, and lubricate the gasket with a small amount of fresh oil.
- Refill with exactly 5.7 quarts of Dexos1 oil, replace the drain plug, start the engine, and check for leaks. Use the dipstick to verify the oil level and add more oil if needed until it reaches the proper mark.
After the change, reset the maintenance indicator if your vehicle uses one and consult the owner’s manual for any model-specific steps or tips.
Why the number matters
Using the correct oil capacity is essential for maintaining engine lubrication, cooling, and overall performance. Underfilling can cause increased wear, while overfilling can lead to oil foaming and other issues. Always verify the exact specification for your vehicle variant and region, as minor differences can exist between model years or trim levels.
Maintenance and reliability notes
Motorists should adhere to Chevrolet’s recommended intervals for oil changes and use genuine GM parts or equivalents that meet Dexos1 standards. Regular oil changes help preserve engine efficiency, oil pressure, and resale value.
Summary
The 2020 Chevy Blazer with the 3.6L V6 requires about 5.7 quarts of engine oil per change, including the filter. Use Dexos1-approved oil (commonly 5W-30, climate dependent) and replace the oil filter at every change. Always verify the exact specifications in the owner's manual or via GM service data for your vehicle’s exact configuration.


