2021 Chevrolet Silverado 1500 Oil Capacity & Filter Guide

Your 2021 Chevrolet Silverado 1500's oil capacity varies depending on the engine, ranging from 5.5 quarts to 8.0 quarts.

Quick Answer

Here’s a summary of the essential information for your 2021 Silverado 1500:

• Total Oil Capacity: 5.5 - 8.0 US Quarts (5.2 - 7.6 Liters) depending on engine.
• Recommended Oil Weight:
  • 5.3L and 6.2L V8 Engines: SAE 0W-20
  • 2.7L Turbo and 3.0L Duramax Diesel Engines: SAE 0W-30
• Oil Spec:
  • Gasoline Engines (2.7L, 5.3L, 6.2L): Dexos1 Gen3. Look for the "dexos1" logo on the oil bottle.
  • Diesel Engine (3.0L Duramax): DexosD. Look for the "dexosD" logo.
• Oil Filter Part Numbers:
  • OEM AC Delco:
    • 2.7L Turbo: PF66 (GM #12696041)
    • 5.3L & 6.2L V8: PF63 (GM #12691910)
    • 3.0L Duramax: PF2268G (GM #12690040)
  • Fram Cross-Reference:
    • 2.7L Turbo: PH12060
    • 5.3L & 6.2L V8: PH10575
    • 3.0L Duramax: CH12693
  • Mobil 1 Cross-Reference:
    • 2.7L Turbo: M1-113A
    • 5.3L & 6.2L V8: M1-113A
    • 3.0L Duramax: M1C-451A
  • Wix Cross-Reference:
    • 2.7L Turbo: 57045
    • 5.3L & 6.2L V8: 57060
    • 3.0L Duramax: WL10010

Capacity by Engine Option

The 2021 Chevrolet Silverado 1500 offered a range of engine options, each with specific oil capacities:

Note: Always consult your owner's manual or the oil fill cap for the most accurate and up-to-date information for your specific vehicle configuration.

Oil Change Interval

Adhering to correct oil change intervals is crucial for engine longevity. Your 2021 Silverado 1500 is equipped with an Oil Life Monitoring (OLM) system. This system takes into account various factors like temperature, rpm, and driving conditions to determine when an oil change is due.

• Normal Duty Driving: Under normal driving conditions, the OLM system often recommends an oil change between 7,500 and 10,000 miles, or 12 months, whichever comes first. It's best to change the oil once the OLM indicates the oil life is at 5-10%.
• Severe Duty Driving: If you frequently engage in severe duty driving (e.g., heavy towing, sustained high RPMs, frequent short trips, extreme temperatures, dusty conditions), it's advisable to change your oil more frequently, typically every 3,000 to 5,000 miles or 6 months. Even with an OLM, severe conditions can degrade oil faster.

Drain Plug Torque

Properly torquing your drain plug is essential to prevent leaks and avoid stripping the oil pan threads.

• 2.7L Turbo I-4: 18 lb-ft (25 Nm)
• 5.3L & 6.2L V8: 18 lb-ft (25 Nm)
• 3.0L Duramax Diesel: 18 lb-ft (25 Nm)

Always use a new crush washer every time you change your oil. The crush washer creates a seal and is designed to deform once, ensuring a leak-free seal. Reusing an old crush washer significantly increases the risk of oil leaks.

How to Change the Oil

Changing the oil on your 2021 Silverado 1500 is a straightforward process for the DIY mechanic:

1. Gather Supplies: New oil, new oil filter, new crush washer, drain pan, wrench/socket for drain plug, oil filter wrench, funnel, rags, jack and jack stands (if needed).
2. Warm Up Engine (Optional): Running the engine for a few minutes can help the oil flow better, but ensure it's not too hot to safely work around.
3. Lift and Secure: Safely lift the front of the truck with a jack and secure it with jack stands. Always use appropriate safety measures.
4. Locate Drain Plug: The drain plug is typically on the oil pan, underneath the engine.
5. Drain Oil: Place your drain pan directly under the drain plug, then carefully remove the plug. Allow all the old oil to drain completely.
6. Replace Drain Plug: Install a new crush washer onto the drain plug and thread it back into the oil pan. Torque to the specified value.
7. Remove Old Filter: Locate the oil filter (location varies by engine). Use an oil filter wrench if necessary to loosen and remove it. Be prepared for a small amount of oil to spill.
8. Prepare New Filter: Apply a thin film of new oil to the rubber gasket of the new oil filter.
9. Install New Filter: Hand-tighten the new filter until snug, then give it an additional 1/2 to 3/4 turn. Do not overtighten.
10. Add New Oil: Remove the oil fill cap on the engine and use a funnel to slowly add the correct amount and type of new oil. It's a good practice to start with slightly less than the full capacity and check the dipstick.
11. Check for Leaks: Start the engine and let it run for a minute or two. Check underneath the truck for any oil leaks around the drain plug and oil filter.
12. Verify Oil Level: Turn off the engine, wait a few minutes for the oil to settle, then check the dipstick. Add more oil if needed until it reaches the "full" mark.
13. Reset Oil Life Monitor: Consult your owner's manual for instructions on how to reset the Oil Life Monitoring system.

Common Issues / Tips

• DFM / AFM Systems (5.3L & 6.2L V8): The Dynamic Fuel Management (DFM) and Active Fuel Management (AFM) systems on the V8 engines can be sensitive to oil quality and level. Using the correct Dexos1 Gen3 oil and maintaining proper oil levels is paramount to preventing potential lifter issues or excessive oil consumption often associated with these systems.
• Turbocharger Care (2.7L Turbo): The 2.7L Turbo engine relies heavily on clean oil for turbocharger longevity. Timely oil changes with the correct 0W-30 Dexos1 Gen3 oil are crucial to prevent oil coking and premature turbo wear.
• Duramax Diesel Oil Specs: The 3.0L Duramax diesel engine requires very specific DexosD oil. Do not use gasoline engine oil in this diesel engine, as it can cause significant damage to emissions control systems and engine components.
• Oil Filter Housing (2.7L and 3.0L Diesel): These engines use a cartridge-style oil filter, often located on top of the engine, which can be less messy than spin-on filters once you get the hang of it. Be careful with the plastic housing and O-rings.
• Check for Leaks: Regularly check for any oil leaks, especially around the oil pan and filter. Early detection can prevent more significant problems.

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