The Jeep Grand Cherokee has a reputation for strength, comfort, and off-road capability. One detail many buyers and owners overlook is the gas tank size.
Understanding fuel capacity is more than just a number—it affects road trip planning, fuel stops, and even which model is best for your lifestyle. Let's break down how the gas tank size changes across different years, trims, and engines, and what that means for your day-to-day driving.
Gas Tank Size By Generation
The Jeep Grand Cherokee’s fuel tank has changed over its long history. Here’s a quick look at the most common gas tank sizes, organized by generation and typical model years.
| Generation | Model Years | Gas Tank Size (Gallons) |
|---|---|---|
| 1st (ZJ) | 1993–1998 | 23.0 |
| 2nd (WJ) | 1999–2004 | 20.5 |
| 3rd (WK) | 2005–2010 | 21.1 |
| 4th (WK2) | 2011–2026 | 24.6 |
| 5th (WL) | 2026–Present | 23.0 |
It’s clear that the Grand Cherokee’s gas tank size is usually between 20 and 25 gallons, with some variation depending on the model year and engine.
How Trim And Engine Choice Affects Gas Tank Size
Not every Jeep Grand Cherokee has the same tank, even in the same year. The engine and trim level can change capacity.
Common Variations
- Standard V6 models usually have the base gas tank size for that generation.
- V8 and diesel engines sometimes come with slightly larger tanks for increased range.
- Performance versions like the SRT or Trackhawk may have different tank sizes due to their higher fuel demands.
| Trim/Engine | Typical Gas Tank Size (Gallons) | Notes |
|---|---|---|
| V6 (Base/Laredo/Limited) | 24.6 (WK2) | Most common size for 2011–2026 |
| V8 (Overland/Summit) | 24.6 (WK2) | Same as V6 in most years |
| Diesel (EcoDiesel) | 24.6 (WK2) | Highway range over 600 miles |
| SRT/Trackhawk | 24.6 (WK2) | High fuel consumption |
| 4xe Plug-in Hybrid | 19.0 (WL) | Smaller tank due to batteries |
For example, the new Grand Cherokee 4xe plug-in hybrid has a smaller gas tank (about 19 gallons) because the battery pack takes up space. This is a detail many buyers don’t notice before purchase.
Real-world Range And Mpg
A bigger gas tank doesn’t always mean longer range. Your driving range depends on both fuel capacity and miles per gallon (MPG). Let’s look at how far you can go on a full tank with different engines.
| Engine | MPG (Combined) | Gas Tank Size (Gallons) | Estimated Range (Miles) |
|---|---|---|---|
| 3.6L V6 | 21 | 24.6 | ~516 |
| 5.7L V8 | 17 | 24.6 | ~418 |
| 3.0L Diesel | 24 | 24.6 | ~590 |
| 4xe Plug-in Hybrid | 23 (gas only) | 19.0 | ~437 |
These numbers are based on EPA estimates. Real-world results can vary with speed, weather, and how much weight you carry.
Key Insight: Range Anxiety
Even with a smaller tank, the plug-in hybrid can often go further between gas stops if you use electric mode for short trips. Many buyers don’t realize that the “total range” includes both electric and gas power.
Why Gas Tank Size Matters
You might wonder why the gas tank size is so important. Here’s how it affects your driving experience:
- Fewer stops: A larger tank means you can drive longer between fill-ups, helpful for long road trips or remote areas.
- Weight: Bigger tanks add weight, which can slightly lower fuel economy.
- Price at the pump: Filling a 24-gallon tank costs more than a 19-gallon tank, especially with rising fuel prices.
- Resale value: Some buyers prefer models with bigger tanks for convenience.
A common mistake is only looking at MPG and ignoring tank size. Two SUVs with the same MPG can have very different ranges if their tanks are different sizes.
How To Find Your Jeep Grand Cherokee’s Gas Tank Size
If you’re not sure which tank your Grand Cherokee has, try these steps:
- Check your owner’s manual: This is the most reliable source.
- Look for a sticker: Sometimes, the fuel door or inside the driver’s door lists the capacity.
- Search by VIN: Websites like the official Jeep site can show specs for your exact vehicle.
- Ask a dealer: For older models, dealers can look up your tank size by trim and year.
Remember that aftermarket modifications or previous owners may have changed the gas tank. Always check before planning a very long trip.
Practical Tips For Owners
A few practical tips can make the most out of your Grand Cherokee’s fuel tank:
- Don’t always run the tank to empty: Try to refuel when you have a quarter tank left. This helps your fuel pump last longer.
- Watch for low-fuel warnings: There’s often a small reserve (1–2 gallons) after the light comes on, but don’t push your luck.
- Know your trip length: If you’re towing or going off-road, your MPG will be lower than usual. Plan extra stops.
- Use high-quality fuel: This keeps your engine running well and can improve your real-world range.
Many owners forget that heavy loads, big tires, or roof racks can also lower MPG and shrink your effective range.
Frequently Asked Questions
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“,”visible”:true},{“id”:”faq-question-1a1aa61094f3″,”title”:”How Many Miles Can A Jeep Grand Cherokee Go On A Full Tank?”,”content”:”Depending on engine and driving style, a Grand Cherokee can often travel between 400 and 600 miles on a full tank. The diesel model offers the best range.
“,”visible”:true},{“id”:”faq-question-3014b610bdb6″,”title”:”Does The Gas Tank Size Change With Four-wheel Drive Models?”,”content”:”No, most 4WD and 2WD Grand Cherokees have the same gas tank size within a given year and trim. The main differences come from engine choice or hybrid models.
“,”visible”:true},{“id”:”faq-question-3fa6a6382e28″,”title”:”Is The Gas Tank Size The Same For The Grand Cherokee L?”,”content”:”The Grand Cherokee L (the three-row version) usually has a 23-gallon tank, which is slightly smaller than the two-row WK2 but similar to the newest WL models.
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If you’re buying or driving a Jeep Grand Cherokee, understanding the gas tank size helps you plan better, avoid surprises, and get the most out of your SUV. Now you know how to find your tank size, compare ranges, and avoid common mistakes—so your next adventure won’t be cut short by an empty tank.
“,”visible”:true}]} –>What Is The Largest Gas Tank Size For A Jeep Grand Cherokee?
The biggest factory gas tank found in a Grand Cherokee is 24.6 gallons, available on most 2011–2026 models with V6, V8, or diesel engines.
How Many Miles Can A Jeep Grand Cherokee Go On A Full Tank?
Depending on engine and driving style, a Grand Cherokee can often travel between 400 and 600 miles on a full tank. The diesel model offers the best range.
Does The Gas Tank Size Change With Four-wheel Drive Models?
No, most 4WD and 2WD Grand Cherokees have the same gas tank size within a given year and trim. The main differences come from engine choice or hybrid models.
Is The Gas Tank Size The Same For The Grand Cherokee L?
The Grand Cherokee L (the three-row version) usually has a 23-gallon tank, which is slightly smaller than the two-row WK2 but similar to the newest WL models.
Where Can I Check Official Gas Tank Specs?
You can find official specs on the Jeep website or in your owner’s manual.
If you’re buying or driving a Jeep Grand Cherokee, understanding the gas tank size helps you plan better, avoid surprises, and get the most out of your SUV. Now you know how to find your tank size, compare ranges, and avoid common mistakes—so your next adventure won’t be cut short by an empty tank.
