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2024 6.6 Duramax Oil Capacity

Most 2024 6.6 Duramax applications use 10 qt with a new oil filter. Check the table below to match your exact vehicle before filling.

With filter

10 qt

Recommended oil

dexosD / API CK-4 diesel oil where specified

Typical viscosity

15W-40 normal service; 5W-40 synthetic for cold service

Oil Capacity by Year and Application

All numbers below are with a new oil filter.

2017-2026Chevrolet Silverado HD / GMC Sierra HD with 6.6L Duramax L5P10 qt9.5 LdexosD / API CK-4 diesel oil where specified
Start a little below the listed amount, then use the dipstick to top off. Check the owner manual if your vehicle has a different chassis, duty rating, or special package.

Common Questions

How many quarts does a 2024 6.6 Duramax take?

Most 2024 6.6 Duramax applications take 10 qt with a new oil filter. Match your exact vehicle row before filling.

Does the 2024 6.6 Duramax oil capacity include the filter?

Yes. The capacity shown here is the with-filter amount for a normal oil and filter change.

What oil should I use in a 2024 6.6 Duramax?

2024 6.6 Duramax applications commonly list 15W-40 normal service; 5W-40 synthetic for cold service. Use the recommended oil shown for your matching application and confirm it in the owner manual.

Why might my 2024 6.6 Duramax use a different amount?

A different chassis, oil pan, duty rating, or special package can change the published refill amount. Use the row that matches your vehicle.

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