Vehicle Guides
MG MPG Guides — Real-World Fuel Economy
Real-world fuel economy and annual running costs for all 3 MG models. Official WLTP figures adjusted for UK driving conditions — typically 12% lower than lab results.
3
MG models
31–45
Real-world MPG range
£1023
Cheapest annual fuel cost
£1485
Highest annual fuel cost
All MG models — sorted by fuel efficiency
Frequently asked questions
Which MG is most fuel efficient?
The most fuel-efficient MG in our database is the MG MG3, achieving approximately 45 MPG in real-world UK driving conditions.
What is the cheapest MG to run on fuel?
The cheapest MG to run on fuel at the current UK average annual mileage of 7,400 miles costs approximately £1023 per year. The most fuel-efficient variant is the MG MG3.
What MPG does a MG get in real-world driving?
MG models achieve between 31 and 45 MPG in real-world UK driving, depending on the model and engine. Official WLTP figures are typically 12% higher than real-world results due to laboratory test conditions.
How much does it cost to fill a MG?
MG fuel tank sizes range from 45L to 55L depending on the model. At the current UK average petrol price of 136.8p/litre, a full tank costs between £62 and £75.
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