Jeep Grand Cherokee — MPG & Fuel Costs 2025
Jeep's premium luxury large SUV, offering outstanding passenger comfort and heavy-duty towing capability.
The Jeep Grand Cherokee is a large luxury SUV, combining high cabin refinement and equipment with genuine off-road capability and high towing weight limits.
Power is delivered by a robust 3.0-litre V6 CRD diesel engine (developed with VM Motori), offering strong performance and high towing capability.
Running a Grand Cherokee means higher fuel costs. A real-world average of 32 MPG is typical for mixed driving.
TL;DR
32 MPG
Real-world diesel
93L
Tank capacity
£127.22
Full tank (petrol)
Real-World Fuel Economy: The Jeep Grand Cherokee achieves an estimated 32 MPG in real-world UK driving conditions, accounting for a 12% WLTP real-world penalty.
Forecourt Fuel Cost: Refueling the 93-litre tank completely costs approximately £132.15 at average UK fuel price rates.
Fuel economy at a glance
32
Real-world MPG
Diesel
37.7
Official WLTP
Diesel
Annual fuel costs by mileage
| Annual mileage | Diesel |
|---|---|
| 5,000 miles/yr | £1009 |
| 7,400 miles/yr(UK average) | £1494 |
| 10,000 miles/yr | £2019 |
| 15,000 miles/yr | £3028 |
| 20,000 miles/yr | £4037 |
| Full tank (93L) | £132.15 |
| Cost per mile | 20.2p |
Based on UK average fuel prices: petrol 136.8p/L · diesel 142.1p/L. Prices updated regularly.
How does the Grand Cherokee compare?
Tips to get better MPG from your Grand Cherokee
The Grand Cherokee is heavy; avoid aggressive starts to keep fuel consumption down.
Use cruise control extensively on long highway runs.
Check tyre pressures regularly, especially under heavy loading.
Is the cheaper petrol station worth it?
In a Jeep Grand Cherokee achieving ~32 MPG real-world, if you fill 74 litres and the alternative station is 10p/litre cheaper:
£7.40
Gross saving on fuel
£0.61
Cost of 3-mile detour
£6.79
Net saving ✓
You could drive up to 37 miles round-trip before the saving disappears entirely.
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Frequently asked questions
What is the real-world MPG of the Jeep Grand Cherokee?
The Jeep Grand Cherokee achieves approximately 32 MPG diesel in real-world conditions, around 12% lower than the official WLTP figure of 37.7 MPG.
How much does it cost to fill a Jeep Grand Cherokee?
The Jeep Grand Cherokee has a fuel tank of 93 litres. At the UK average of 136.8p/litre for petrol, a full tank costs approximately £127.22. Diesel costs approximately £132.15 for a full tank.
What is the annual fuel cost for a Jeep Grand Cherokee?
At 7,400 miles/year and 142.1p/litre diesel, a Jeep Grand Cherokee costs approximately £1494 per year in diesel.
Is it worth driving to a cheaper petrol station in a Jeep Grand Cherokee?
In a Jeep Grand Cherokee doing ~32 MPG real-world, driving 3 miles round-trip to save 10p/litre on a 74-litre fill nets approximately £6.79 after the extra fuel cost. You could drive up to 37 miles before the saving is eaten up. Use the WorthThePump calculator for your exact situation.
How much does the Jeep Grand Cherokee cost per mile in fuel?
The Jeep Grand Cherokee costs approximately 20.2p per mile in diesel at current UK prices.
What is the WLTP MPG figure for the Jeep Grand Cherokee?
The official WLTP fuel economy figure for the Jeep Grand Cherokee is 37.7 MPG. However, real-world MPG is typically 10–15% lower than WLTP due to cold starts, air conditioning, motorway speeds, and varying loads. WorthThePump uses a 12% real-world penalty to give a more accurate estimate.
Related guides
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