Audi Q8 — MPG & Fuel Costs 2025
Audi's flagship luxury SUV coupe. Packed with technology and high-end materials, though running costs are substantial.
TL;DR
23 MPG
Real-world petrol
30 MPG
Real-world diesel
85L
Tank capacity
£116.28
Full tank (petrol)
27.0p
Per mile (petrol)
Real-World Fuel Economy: The Audi Q8 achieves an estimated 23 MPG (petrol) and 30 MPG (diesel) in real-world UK driving conditions, accounting for a 12% WLTP real-world penalty.
Forecourt Fuel Cost: Refueling the 85-litre tank completely costs approximately £116.28 (petrol) or £120.78 (diesel) at average UK fuel price rates.
Fuel economy at a glance
23
Real-world MPG
Petrol
27.7
Official WLTP
Petrol
30
Real-world MPG
Diesel
35.8
Official WLTP
Diesel
Annual fuel costs by mileage
| Annual mileage | Petrol | Diesel |
|---|---|---|
| 5,000 miles/yr | £1352 | £1077 |
| 7,400 miles/yr(UK average) | £2001 | £1593 |
| 10,000 miles/yr | £2704 | £2153 |
| 15,000 miles/yr | £4056 | £3230 |
| 20,000 miles/yr | £5408 | £4307 |
| Full tank (85L) | £116.28 | £120.78 |
| Cost per mile | 27.0p | 21.5p |
Based on UK average fuel prices: petrol 136.8p/L · diesel 142.1p/L. Prices updated regularly.
How does the Q8 compare?
Tips to get better MPG from your Q8
The Q8 is massive and heavy; avoid aggressive starts to keep fuel consumption down.
Use the predictive efficiency assistant to anticipate speed changes and coast early.
Keep tyre pressures checked to handle the heavy performance chassis.
Is the cheaper petrol station worth it?
In a Audi Q8 achieving ~23 MPG real-world, if you fill 68 litres and the alternative station is 10p/litre cheaper:
£6.80
Gross saving on fuel
£0.81
Cost of 3-mile detour
£5.99
Net saving ✓
You could drive up to 25 miles round-trip before the saving disappears entirely.
Calculate for your exact situationPopular variants
Frequently asked questions
What is the real-world MPG of the Audi Q8?
The Audi Q8 achieves approximately 23 MPG in real-world petrol driving — around 12% lower than the official WLTP figure of 27.7 MPG due to real driving conditions. Diesel variants achieve around 30 MPG real-world.
How much does it cost to fill a Audi Q8?
The Audi Q8 has a fuel tank of 85 litres. At the UK average of 136.8p/litre for petrol, a full tank costs approximately £116.28. Diesel costs approximately £120.78 for a full tank.
What is the annual fuel cost for a Audi Q8?
At the UK average annual mileage of 7,400 miles and current petrol price of 136.8p/litre, a Audi Q8 costs approximately £2001 per year in fuel. At 10,000 miles/year the cost rises to £2704. Actual costs vary with your driving style and mileage.
Is it worth driving to a cheaper petrol station in a Audi Q8?
In a Audi Q8 doing ~23 MPG real-world, driving 3 miles round-trip to save 10p/litre on a 68-litre fill nets approximately £5.99 after the extra fuel cost. You could drive up to 25 miles before the saving is eaten up. Use the WorthThePump calculator for your exact situation.
How much does the Audi Q8 cost per mile in fuel?
The Audi Q8 costs approximately 27.0p per mile in petrol at current UK prices. Over a typical commute of 30 miles per day, that is approximately £8.10 per day in fuel.
What is the WLTP MPG figure for the Audi Q8?
The official WLTP fuel economy figure for the Audi Q8 is 27.7 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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