2007 GMC Duramax Engine Oil Capacity

If you can’t find the engine oil capacity for your 2007 GMC Duramax, we’ve got all the specs you need.
Written by Talullah Blanco
Reviewed by Melanie Reiff
Jul 25, 2022
A workhorse of a truck, it’s crucial to keep up with your routine
car maintenance schedule
to ensure your 2007 GMC Duramax stays in excellent condition. You’ll need to know your engine oil capacity to keep your GMC Duramax running smoothly.
While car maintenance might feel like a pain in the neck (and wallet), keeping up with it is the best way to curtail any serious (and expensive!) repairs down the line and keep your vehicle in tip-top shape. Changing the engine oil in your 2007 GMC Duramax is not only easy but it’s affordable, too!
If you don’t know the engine capacity or correct oil type for your 2007 GMC Duramax, you’ve come to the right place. The super app for
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2007 GMC Duramax engine oil capacity

First things first. You’ll need to know how much engine oil your 2007 GMC Duramax actually needs before you can actually perform your
GMC oil change
The 2007 GMC Duramax has an engine oil capacity of 10 quarts or 9.5 liters. If you are checking your owner’s manual to find this information, don’t get engine oil capacity mixed up with your engine’s displacement, which is the volume of the cylinders. This is not the amount of engine oil your GMC needs.

What kind of oil does a 2007 GMC Duramax need?

Your GMC Duramax won’t take just any oil—it needs 15W-40 synthetic oil. If you’re not sure what those letters and numbers mean, we’ll break it down for you. 
The 15W-40 synthetic oil reduces wear on heavy-duty engines and performs well in cold weather conditions. The letter “W” refers to winter, and the two numbers indicate the oil’s viscosity (or thickness) at different temperatures. 
The first number is the oil’s viscosity when it is cold. The second is the oil’s viscosity when the engine reaches full operating temperature. 
  • The original: The owner’s manual recommends
    SAE 15W-40
    for the 2007 GMC Duramax.

How often to change oil on a 2007 GMC Duramax

GMC recommends you change your engine oil every 10,000 miles or annually—whichever comes first. If you drive more than the average person, you may be better off changing your oil every six months. However, checking your oil once a month will guarantee you know exactly when your oil needs to be changed and prevent any serious issues.
You might need to change the engine oil in your 2007 GMC Duramax if you notice the following: 
  • Irregular oil texture
  • Knocking sound coming from the engine
  • Vibrations at standstill
  • Rotten egg smells
  • Dark exhaust smoke
  • Low oil level

How to change your oil and oil filter

It’s almost time to start changing the oil in your 2007 GMC Duramax! All that’s left to do is gather your tools and materials. Grab a socket and filter wrench, a drain pan, a replacement filter, and 10 quarts of 15W-40 motor oil.
Now that you’ve got everything you need, let’s get started. Run your engine until it reaches normal operating temperature. This usually only takes five minutes. Then, you can change your oil like a pro by following these steps:
  • Remove the cap from the oil reservoir
  • Get under your GMC to locate and detach the oil drain bolt
  • Drain the old oil into the drain pan 
  • Remove the old oil filter before installing the new filter
  • Fill the engine with new oil
Before you pat yourself on the back, use the dipstick to check your oil levels and make sure you’ve added enough oil to your engine.
After changing your oil, it’s a good idea to turn on your car and let your engine run for about 30 seconds before you check the oil level. This will give you a more accurate measurement, and you’ll be able to top it off if necessary.
If the oil pressure light is off, you successfully changed your GMC’s oil! Now you can finally clean up. Pour the old oil into a sealed container and bring it to the local recycling center to properly dispose of it.

Don’t forget regular insurance policy maintenance

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