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How much coolant does a 6.2 LS take?

The cooling system of a typical 6.2-liter GM LS engine holds roughly 13.5 to 16 quarts (about 12.7 to 15.1 liters) of coolant. The exact amount depends on the model and whether the heater core is drained or additional accessories are involved. For a standard full refill, plan around 14 quarts (13.2 liters) and always check the vehicle’s service manual for your specific application.


Estimated coolant capacity for a 6.2 LS


Note that capacity varies by model year and configuration. The figures below reflect common setups used in cars and trucks with the 6.2L LS engine and include the radiator, hoses, heater core, and engine block.



  • Typical total cooling system capacity: about 13.5–16 quarts (12.7–15.1 liters), depending on heater core routing and accessory layout.


In practical terms, budgeting around 14 quarts is reasonable for a complete refill. Always verify the exact specification in the factory service manual for your vehicle.


How to refill and bleed the cooling system


To avoid air pockets and ensure proper circulation, follow these steps when refilling the cooling system.



  1. Allow the engine to cool completely, then open the radiator cap carefully to relieve any residual pressure. Remove the cap only when safe.

  2. With the engine off, remove the radiator cap (or reservoir cap if applicable) and begin filling with a 50/50 mix of distilled water and a GM-approved long-life coolant (Dex-Cool or equivalent meeting GM specifications).

  3. Fill until the radiator is near full, then reinstall the cap loosely. Start the engine and set the climate control to hot air; this helps push coolant through the heater core.

  4. Let the engine reach operating temperature and monitor the coolant level. As air is purged, the level in the radiator may drop; add coolant as needed.

  5. Once the engine reaches normal operating temperature and the thermostat has opened, turn off the engine, let it cool, and recheck the coolant level. Top off as necessary and inspect for leaks.


If your vehicle has a bleeder valve or a specialized service procedure, follow GM’s official bleeding instructions to ensure all air is removed from the system.


Coolant type and maintenance tips


Choosing the right coolant and maintaining it properly is essential for a healthy 6.2 LS cooling system.



  • Coolant type: Use a GM-approved long-life coolant (Dex-Cool or an equivalent that meets GM specification). Do not mix Dex-Cool with non-Dex products.

  • Concentration: Use a 50/50 premixed coolant or mix with distilled water to achieve the recommended concentration for your climate and vehicle.

  • Maintenance interval: Follow GM guidance for Dex-Cool intervals, typically around 5 years or 150,000 miles, or per the owner's manual. Flush and replace if switching coolant types or if contamination is suspected.


Consult the vehicle’s owner’s manual and GM service documentation for model-year specifics and any special notes for your application.


Summary


For most 6.2L LS engines, plan on roughly 13.5–16 quarts (12.7–15.1 liters) of coolant for a full system refill, with about 14 quarts (13.2 liters) being a practical target. The exact amount varies by vehicle configuration and heater-core setup. Use a GM-approved Dex-Cool long-life coolant, follow proper bleeding procedures, and adhere to maintenance intervals to keep the cooling system in good condition.

How much coolant does a 2002 escalade take?


Oil Capacity (qts.) (qt)6.0
Coolant Capacity (qt)13.4
Transmission
Transmission TypeAutomatic
Forward Gears4-speed



How much coolant does a V8 hold?


Capacities and Specifications - 5.4L V8

ItemCapacity
Engine oil (with oil filter)6.0 qt (5.7 L)
Engine coolant28.7 qt (27.2 L)
Engine coolant - with auxiliary rear heat30.7 qt (29.1 L)
Brake fluidBetween MIN/MAX on brake fluid reservoir



How much oil does a 6.2 LS take?


A 6.2L LS engine typically has an oil capacity of 8 quarts when changing the oil and filter, although some older or specific applications like a 2008 GMC Yukon may require less, around 6 quarts. Always check the vehicle's owner's manual or the oil fill cap for the exact recommendation, and be sure to check the oil level after refilling. 
Typical capacity

  • 8 quarts: This is the most common capacity for modern 6.2L engines found in vehicles like the Chevrolet Silverado, GMC Sierra, and Chevrolet Tahoe. 

Less common capacities
  • 6 quarts: Some older models, such as the 2008 GMC Yukon with a 6.2L engine, have a smaller capacity. 
  • 7 quarts: Certain older LS engines used in some applications may have a different capacity. 

Important considerations
  • Always verify: The best way to be certain is to check your vehicle's specific owner's manual or the oil cap, as capacities can vary by model year and application. 
  • After refilling: After adding the oil, always check the dipstick to ensure the level is correct and then start the engine and recheck the level to confirm it is within the recommended range. 
  • With filter: The capacities listed above are for an oil change that includes replacing the oil filter. 



How many gallons of antifreeze does a Chevy 1500 take?


13.4 quarts without a/c, and 14.9 with a/c. so between 3 and 4 gallons total from empty, with 50/50 mix antifreeze and distilled water. Again Equal amount.


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.