Renault Laguna — MPG & Fuel Costs 2025
Renault's comfortable large family car and fleet favourite, offering a highly comfortable ride and frugal dCi diesel engines.
TL;DR
33 MPG
Real-world petrol
48 MPG
Real-world diesel
66L
Tank capacity
£90.29
Full tank (petrol)
18.8p
Per mile (petrol)
Real-World Fuel Economy: The Renault Laguna achieves an estimated 33 MPG (petrol) and 48 MPG (diesel) in real-world UK driving conditions, accounting for a 12% WLTP real-world penalty.
Forecourt Fuel Cost: Refueling the 66-litre tank completely costs approximately £90.29 (petrol) or £93.79 (diesel) at average UK fuel price rates.
Fuel economy at a glance
33
Real-world MPG
Petrol
39.2
Official WLTP
Petrol
48
Real-world MPG
Diesel
56.5
Official WLTP
Diesel
Annual fuel costs by mileage
| Annual mileage | Petrol | Diesel |
|---|---|---|
| 5,000 miles/yr | £942 | £673 |
| 7,400 miles/yr(UK average) | £1395 | £996 |
| 10,000 miles/yr | £1885 | £1346 |
| 15,000 miles/yr | £2827 | £2019 |
| 20,000 miles/yr | £3769 | £2692 |
| Full tank (66L) | £90.29 | £93.79 |
| Cost per mile | 18.8p | 13.5p |
Based on UK average fuel prices: petrol 136.8p/L · diesel 142.1p/L. Prices updated regularly.
How does the Laguna compare?
Tips to get better MPG from your Laguna
Use 5th or 6th gear on motorway runs to keep the RPMs low.
Clean air filters regularly to ensure optimal fuel combustion.
Cruise control should be engaged on motorway stretches.
Is the cheaper petrol station worth it?
In a Renault Laguna achieving ~33 MPG real-world, if you fill 53 litres and the alternative station is 10p/litre cheaper:
£5.30
Gross saving on fuel
£0.57
Cost of 3-mile detour
£4.73
Net saving ✓
You could drive up to 28 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 Renault Laguna?
The Renault Laguna achieves approximately 33 MPG in real-world petrol driving — around 12% lower than the official WLTP figure of 39.2 MPG due to real driving conditions. Diesel variants achieve around 48 MPG real-world.
How much does it cost to fill a Renault Laguna?
The Renault Laguna has a fuel tank of 66 litres. At the UK average of 136.8p/litre for petrol, a full tank costs approximately £90.29. Diesel costs approximately £93.79 for a full tank.
What is the annual fuel cost for a Renault Laguna?
At the UK average annual mileage of 7,400 miles and current petrol price of 136.8p/litre, a Renault Laguna costs approximately £1395 per year in fuel. At 10,000 miles/year the cost rises to £1885. Actual costs vary with your driving style and mileage.
Is it worth driving to a cheaper petrol station in a Renault Laguna?
In a Renault Laguna doing ~33 MPG real-world, driving 3 miles round-trip to save 10p/litre on a 53-litre fill nets approximately £4.73 after the extra fuel cost. You could drive up to 28 miles before the saving is eaten up. Use the WorthThePump calculator for your exact situation.
How much does the Renault Laguna cost per mile in fuel?
The Renault Laguna costs approximately 18.8p per mile in petrol at current UK prices. Over a typical commute of 30 miles per day, that is approximately £5.64 per day in fuel.
What is the WLTP MPG figure for the Renault Laguna?
The official WLTP fuel economy figure for the Renault Laguna is 39.2 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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