Jeep Grand Cherokee Gas Type

Jeep Grand Cherokee Gas Type – Which is best for You?

The Jeep Grand Cherokee has been in production for several years and continues to be one of the most popular mid-sized SUVs in the United States. In this guide, we’re going to provide you with a comprehensive overview of the various fuels used for the Grand Cherokee.

Since there are several different types of gasoline fuels available, knowing which one to use for your Jeep Grand Cherokee model is very important. Choosing the wrong fuel can lead to poor engine performance, low fuel efficiency, and even engine damage in some cases. To help you avoid that, we have compiled a detailed list of the different Jeep Grand Cherokee gas types used.

Read on to find out more.

What Gas Type Does the Jeep Grand Cherokee Use?

A Jeep Grand Cherokee uses regular unleaded gasoline. According to the manufacturer’s specifications, the vehicle is designed to run on unleaded 87-octane gas or higher. For more related information, check out the 2023 Jeep Grand Cherokee’s owner’s manual here.

Learn more about this popular mid size SUV:

Jeep Grand Cherokee Fuel Type by Model

While the Jeep Grand Cherokee runs on unleaded gasoline, the exact fuel type can vary slightly, depending on the model year and engine size. Below, we list down the different types of fuels each generation of the Grand Cherokee uses and specify exactly which models use that fuel.

2022 to present (WL)

Regular gasoline (octane-87)

  • 2022: 2.0-liter I4, 3.6-liter V6
  • 2023: 2.0-liter I4, 3.6-liter V6, 5.7-liter V8

Mid-grade gasoline (octane-89)

  • 2022: 5.7-liter V8

2011 to 2021 (WK2)

Regular gasoline (octane-87)

  • 2016: 3.6-liter V6
  • 2017: 3.6-liter V6
  • 2018: 3.6-liter V6
  • 2019: 3.6-liter V6
  • 2020: 3.6-liter V6
  • 2021: 3.6-liter V6

Mid-grade gasoline (octane-89)

  • 2011: 5.7-liter V8
  • 2012: 5.7-liter V8
  • 2013: 5.7-liter V8
  • 2014: 5.7-liter V8
  • 2015: 5.7-liter V8
  • 2016: 5.7-liter V8
  • 2017: 5.7-liter V8
  • 2018: 5.7-liter V8
  • 2019: 5.7-liter V8
  • 2020: 5.7-liter V8
  • 2021: 5.7-liter V8

Premium gasoline (octane-91 or higher)

  • 2012: 6.4-liter V8
  • 2013: 6.4-liter V8
  • 2014: 6.4-liter V8
  • 2015: 6.4-liter V8
  • 2016: 6.4-liter V8
  • 2017: 6.4-liter V8
  • 2018: 6.2-liter V8, 6.4-liter V8
  • 2019: 6.2-liter V8, 6.4-liter V8
  • 2020: 6.2-liter V8, 6.4-liter V8
  • 2021: 6.2-liter supercharged V8, 6.4-liter V8

Diesel fuel no. 2

  • 2014: 3.0-liter V6
  • 2015: 3.0-liter V6
  • 2016: 3.0-liter V6
  • 2017: 3.0-liter V6
  • 2018: 3.0-liter V6
  • 2019: 3.0-liter V6

Flexible fuel type

  • 2011: 3.6-liter V6
  • 2012: 3.6-liter V6
  • 2013: 3.6-liter V6
  • 2014: 3.6-liter V6
  • 2015: 3.6-liter V6

2005 to 2010 (WK/WH)

Regular gasoline (octane-87)

  • 2005: 3.7-liter V6, 4.7-liter V8
  • 2006: 3.7-liter V6, 4.7-liter V8
  • 2007: 3.7-liter V6
  • 2008: 3.7-liter V6
  • 2009: 3.7-liter V6
  • 2010: 3.7-liter V6

Mid-grade gasoline (octane-89)

  • 2005: 5.7-liter V8
  • 2006: 5.7-liter V8
  • 2007: 5.7-liter V8
  • 2008: 5.7-liter V8
  • 2009: 5.7-liter V8
  • 2010: 5.7-liter V8

Premium gasoline (octane-91 or higher)

  • 2006: 6.1-liter V8
  • 2007: 6.1-liter V8
  • 2008: 6.1-liter V8
  • 2009: 6.1-liter V8
  • 2010: 6.1-liter V8

Diesel fuel no. 2

  • 2010: 3.0-liter V6

Diesel fuel

  • 2005: 3.0-liter V6
  • 2006: 3.0-liter V6
  • 2007: 3.0-liter V6
  • 2008: 3.0-liter V6
  • 2009: 3.0-liter V6

Flexible fuel type

  • 2007: 4.7-liter V8
  • 2008: 4.7-liter V8
  • 2009: 4.7-liter V8

1999 to 2004 (WJ/WG)

For the 4.0-liter 6-cylinder and 4.7-liter V8 variant of the 2nd generation Jeep Grand Cherokee, the manufacturer recommends using regular gasoline (octane-87). For the 4.7-liter HO engine variant, premium gasoline (octane-91 or higher) should be used.

1992 to 1998 (ZJ)

For the 4.0-liter 6-cylinder and 5.2-liter V8 variant of the 1st generation Jeep Grand Cherokee, the manufacturer recommends using regular gasoline (octane-87). For the 5.9-liter engine variant, mid-grade gasoline (octane-89) should be used.

What Type of Gas Can’t Be Used for the Jeep Grand Cherokee?

Here are two types of fuel that should not be used for your Jeep Grand Cherokee:

1. Gasoline containing MMT (methylcyclopentadienyl manganese tricarbonyl). 

MMT, or manganese-containing fuel additives are added to regular gasoline to improve its octane level. This does not provide any improvement in the performance of the engine over non-MMT gasoline with the same octane rating.

Moreover, it can reduce the lifespan of the spark plug and lower the performance of emission-control systems in certain vehicles.

2. E85 Flex Fuels 

Almost all Jeep Grand Cherokee user manuals prohibit owners from using this type of fuel for their vehicles. This mixture contains 85% ethanol and 15% regular gasoline.

Is the Gas Mileage of the Jeep Grand Cherokee Good?

The 3.6-liter, 2-wheel-drive variant of the current Jeep Grand Cherokee (2021 onwards) has a mileage of 19 miles per gallon (mpg) in the city and 26 on the highway. This gives it a combined mileage of 21, which is an average fuel rating for a car of its size.

Generally, the larger-engine variants of the Jeep Grand Cherokee have lower mileage than small-engine ones, as you’d expect. Moreover, recent vehicle models are considerably more fuel efficient than those from older generations.

Check out this guide to discover more detailed info on the 2022 Jeep Grand Cherokee’s mileage 

Final Thoughts

To sum it up, several different Jeep Grand Cherokee gas types are used today. Most newer models of the vehicle use regular (octane-87) and mid-grade (octane-89) gasoline while larger-engine V8 models typically use premium gasoline (octane-91 or higher). Older 3.0-liter V6 models use Diesel fuel and Diesel fuel no. 2.


Can you put octane-93 gasoline in a Jeep Grand Cherokee?

Yes, you can put octane-93 gasoline in your Jeep Grand Cherokee. Octane-93 gasoline is a premium fuel with a high octane number and can be used for most larger-engine (V8) variants of the vehicle. Smaller-engine models of the Grand Cherokee can run on mid-grade (octane-89) and regular (octane-87) gasoline.

Are 93-octane and 95-octane fuels the same?

While both 93-octane and 95-octane are categorized as premium gasoline fuels, they have different octane numbers. The octane number measures the ability of a fuel to withstand compression without detonating. The higher the number, the better the ability to withstand compression.

Does higher-grade gasoline make a difference in a Jeep Grand Cherokee?

Jeep Grand Cherokee models with larger engines perform better on higher-grade fuels. This means the engine performance and fuel efficiency are the best when the vehicle is running on higher-octane gasoline. Moreover, higher-grade gasoline also extends the life of the engine.

What is The Fuel Economy of a Jeep Grand Cherokee? 

The fuel economy of a Jeep Cherokee depends on the model and engine type. For instance, a 2021 Grand Cherokee with a V6 engine has an estimated EPA fuel economy of 19 mpg in the city and 26 mpg on the highway. In addition, driving habits and a vehicle’s condition may impact the fuel economy of a Grand Cherokee. 

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