What Is My Car's Mpg - Fleet News

What is mpg?

Mpg stands for miles per gallon. It’s a measure of fuel efficiency that tells you how many miles your vehicle can travel on one gallon of fuel. For example:

A car with 30mpg can travel 30 miles on one gallon of fuel.

Higher mpg = better fuel efficiency.

Why does it matter?

Cost savings: Better mpg means you spend less on fuel.

Environmental impact: higher mpg reduces carbon emissions.

Performance indicator: it reflects how efficiently your engine uses fuel.

Regulatory compliance: many regions have fuel economy standards for vehicles.

How can you improve mpg?

Here are practical tips:

Driving habits

Smooth acceleration & braking: avoid rapid starts and stops.

Maintain steady speed: use cruise control on major A-roads and motorways when safe to do so.

Avoid idling: turn off the engine if you’re waiting for more than a minute.

Vehicle maintenance

Keep tyres properly inflated: underinflated tires reduce efficiency.

Regular oil changes: clean oil reduces engine friction.

Replace air filters: improves airflow and combustion.

Reduce weight & drag

Remove unnecessary cargo: extra weight lowers mpg.

Aerodynamics: avoid roof racks when not needed.

Fuel & tech choices

Use recommended fuel: higher octane doesn’t always mean better mpg.

Consider hybrid vehicles or EVs: if upgrading, these offer significant efficiency gains.

Using our tool

All you need to do with our mpg tool is select the make and model of the car you're interested in using the three dropdowns above, then click view results to see its mpg figure.

In addition, should wish to know more about your selected vehicle click the 'more car stats' box below your mpg figure to see comprehensive information on important facts such as road tax (VED) costs, benefit in kind (BIK) list price and insurance cost.

If you know how long you're going to be running the car (its operating cycle) in miles and/or months, we can show you running costs such - depreciation per mile, service, maintenance and repair (SMR) costs per mile, fuel cost per mile and the car's predicted residual value at the end of the operating cycle.