How Much Oil Does a 6.7 Cummins Take? (Explained)

An engine is the core component of each and every vehicle and the quality of its performance also greatly impacts the user’s driving experience. Therefore, it is crucial that the owners of the vehicles make sure that their engine is in an optimal state. 

The 6.7 Cummins is a powerful diesel engine and information regarding its maintenance has been detailed below.

How much oil does a 6.7 Cummins take?

6.7 Cummins is a diesel engine that is used in many vehicles, especially pickup trucks, and most of them take 12 quarts of oil for a complete oil change. However, the amount of oil required varies depending on your vehicle’s condition and model year – older ones are known for being oil hungry.

Let’s walk through this section to know about different model years of Cummins engine –

2007 6.7 Cummins:

2007 6.7 Cummins has an oil capacity of 12 quarts with the filter on. As you change the oil, make sure the engine is at its operating temperature but turned off. Then wait 30 mins and then run the oil into the engine’s upper segment.

2008 6.7 Cummins:

With the filter in place, the oil capacity of a 2008 6.7 Cummins is 12 quarts. While changing the oil, ensure that the engine is at operating temperature but switched off. Wait 30 minutes before injecting the oil into the engine’s upper portion.

2009 6.7 Cummins:

The oil capacity of a 2009 6.7 Cummins with the filter installed is 12 quarts. While changing the oil, make sure the engine is turned off but at operating temperature. Wait 30 minutes before injecting the oil into the upper area of the engine.

2011 6.7 Cummins:

The oil capacity of a 2011 6.7 Cummins is 12 quarts. Make sure the engine is turned off but at working temperature while changing the oil. Wait 30 minutes before pouring oil into the engine.

2014 6.7 Cummins:

The oil capacity of a 2014 6.7 Cummins with the filter installed is 12 quarts. While changing the oil, make sure the engine is turned off but still warm. Give 30 minutes to cool down before adding oil to the engine.

2015 6.7 Cummins:

For 2015 6.7 Cummins, 12 quarts of oil is needed at temperatures below 0 F if SAE 5W-40 engine oil is used, and if 15W-40 oil is used, drive it above 0 F.

2018 6.7 Cummins:

The oil capacity of a 2018 6.7 Cummins is 12 quarts. Make sure the engine is powered off but still hot while filling the oil. Allow 30 minutes before adding engine oil.

2019 6.7 Cummins:

The oil capacity of a 2019 6.7 Cummins with the filter installed is 12 quarts. While filling the oil, make sure the engine is turned off but still warm. Before applying engine oil, wait 30 minutes.

2020 6.7 Cummins:

2020 6.7 Cummins has an oil capacity of 11.5 quarts. So fill the engine with 11.5 quarts of new engine oil with an oil fill funnel and close the oil fill cap when done.

2021 6.7 Cummins:

Similar to the 2020s, the 2021 6.7 Cummins also has 11.5 quarts oil capacity. The procedure is the same: Fill the engine with engine oil, shut the oil fill cap when refilled.

In conclusion, it can be observed that almost all the 6.7-liter Cummins across different year models need 12 quarts of engine oil.

How many gallons of oil does 6.7 Cummins take?

Most manufacturers of pickup trucks that use 6.7 Cummins diesel engines suggest using two types of Valvoline oils for their engines. 15W-40 oil is one of the types of Valvoline oil that is used at temperatures above 0 degrees Fahrenheit. 

5W-40 oil on the other hand is another variant of Valvoline oil that is used in intensely cold temperatures, well below 0 degrees Fahrenheit.

The amount of oil and the frequency of refilling depend on your vehicle’s age, model engine condition, and the type of oil. It is recommended to change your oil every 15,000 miles. 

6.7 Cummins have an engine oil capacity of 3 gallons, however, if you have leaks – you might notice that you need to fill more oil, more frequently.

How often should I change the oil in my 6.7 Cummins?

6.7 Cummins is a diesel engine that is used in different types of vehicles, most commonly in pickup trucks. So it is important that you change the oil in appropriate time to ensure the optimal performance of the engine as well as the vehicle. 

However, there are several factors that decide how frequently you should change the oil in your 6.7 Cummins,

How often should you change the oil and how much oil should you fill in your engine depends on the model and age of the vehicle, older ones tend to require oil refills more frequently. 

If your engine condition is poor or you drive through a rough road, then it is necessary that you change the oil every 15,000 miles.

What type of oil for 6.7 Cummins?

There are different types of oil used for 6.7 Cummins with each oil having its own pros and cons. You can find many variants of engine oil in the market with slight differences in each other, listed below:

• Quaker State 10W40 Protective Oil
• Cummins Onan 15W40 Oil
• Mobil 1 Turbo Diesel Truck Oil
• Shell Rotella T6 Synthetic Diesel Engine Oil
• Valvoline High Mileage 10W-30 Synthetic Blend
• Mobil 1 High Mileage Full Synthetic Motor Oil
• Shell Rotella T5 Synthetic Blend Diesel Engine Oil
• Delo 400 XLE Synthetic Blend Oil

Final Thoughts

The 6.7 Cummins diesel engine is found in a wide range of vehicles, particularly pickup trucks, mostly requiring 12 quarts of oil for a full oil change. But, the amount of oil depends on the state of your car and the model year – older vehicles are infamous for requiring a lot of oil.