Renault Megane RS — MPG & Fuel Costs 2025
A high-performance hot hatch featuring 4Control four-wheel steering and a powerful turbocharged engine.
The Renault Megane RS (Renault Sport) is a high-performance version of the Megane hatchback, designed to offer segment-leading track capabilities and driver engagement.
Under the bonnet is a 1.8-litre turbocharged engine (shared with the Alpine A110 sports car) driving the front wheels. It features 4Control four-wheel steering to improve high-speed stability.
Real-world fuel economy averages around 28 MPG. Motorway cruising can yield 34 MPG under gentle driving, but track or high-performance B-road driving will see this drop into the low 20s.
TL;DR
28 MPG
Real-world petrol
50L
Tank capacity
£68.40
Full tank (petrol)
22.2p
Per mile (petrol)
Real-World Fuel Economy: The Renault Megane RS achieves an estimated 28 MPG in real-world UK driving conditions, accounting for a 12% WLTP real-world penalty.
Forecourt Fuel Cost: Refueling the 50-litre tank completely costs approximately £68.40 at average UK fuel price rates.
Fuel economy at a glance
28
Real-world MPG
Petrol
35.3
Official WLTP
Petrol
Annual fuel costs by mileage
| Annual mileage | Petrol |
|---|---|
| 5,000 miles/yr | £1111 |
| 7,400 miles/yr(UK average) | £1644 |
| 10,000 miles/yr | £2221 |
| 15,000 miles/yr | £3332 |
| 20,000 miles/yr | £4442 |
| Full tank (50L) | £68.40 |
| Cost per mile | 22.2p |
Based on UK average fuel prices: petrol 136.8p/L · diesel 142.1p/L. Prices updated regularly.
How does the Megane RS compare?
Tips to get better MPG from your Megane RS
Use the Comfort driving mode on standard cruises to keep throttle mapping and fuel consumption low.
Ensure you run premium 97+ RON fuel to prevent timing retard and optimize combustion.
Maintain tyre alignment; the four-wheel steering system is sensitive to alignment drag.
Is the cheaper petrol station worth it?
In a Renault Megane RS achieving ~28 MPG real-world, if you fill 40 litres and the alternative station is 10p/litre cheaper:
£4.00
Gross saving on fuel
£0.67
Cost of 3-mile detour
£3.33
Net saving ✓
You could drive up to 18 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 Megane RS?
The Renault Megane RS achieves approximately 28 MPG in real-world petrol driving — around 12% lower than the official WLTP figure of 35.3 MPG due to real driving conditions. Diesel variants achieve around N/A MPG real-world.
How much does it cost to fill a Renault Megane RS?
The Renault Megane RS has a fuel tank of 50 litres. At the UK average of 136.8p/litre for petrol, a full tank costs approximately £68.40. Diesel costs approximately £71.05 for a full tank.
What is the annual fuel cost for a Renault Megane RS?
At the UK average annual mileage of 7,400 miles and current petrol price of 136.8p/litre, a Renault Megane RS costs approximately £1644 per year in fuel. At 10,000 miles/year the cost rises to £2221. Actual costs vary with your driving style and mileage.
Is it worth driving to a cheaper petrol station in a Renault Megane RS?
In a Renault Megane RS doing ~28 MPG real-world, driving 3 miles round-trip to save 10p/litre on a 40-litre fill nets approximately £3.33 after the extra fuel cost. You could drive up to 18 miles before the saving is eaten up. Use the WorthThePump calculator for your exact situation.
How much does the Renault Megane RS cost per mile in fuel?
The Renault Megane RS costs approximately 22.2p per mile in petrol at current UK prices. Over a typical commute of 30 miles per day, that is approximately £6.66 per day in fuel.
What is the WLTP MPG figure for the Renault Megane RS?
The official WLTP fuel economy figure for the Renault Megane RS is 35.3 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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