Measuring fuel consumption

Could the days be numbered for miles per gallon?

Measuring fuel consumption in miles per gallon (mpg), when fuel is sold in litres, could be gone within a generation

Measuring fuel consumption in miles per gallon (mpg), when fuel is sold in litres, could be gone within a generation

Measuring fuel consumption in miles per gallon (mpg), when fuel is sold in litres, could be gone within a generation, AA research in conjunction with Auto Express suggests.

Although 51% of AA members want to keep the mpg measurement, support crashes to 27% among drivers aged 18-34 years.

However, moving to litres may not be a complete capitulation to the EU fuel efficiency measurement of litres per 100 kilometres.

Across the sample of 21,408 AA members in the AA/Populus poll, 33% want a straight switch to miles per litre, rising to 47% - 51% among the 18-34 year olds.

The EU standard gets no more than 5% support across the board.

Confusion at the pumps

The joint AA and Auto Express research reveals the confusion at the pumps as cash-strapped drivers, looking to survive record fuel prices, try to square fuel consumption in mpg with costs in litres.

The magazine took to a forecourt to see how well drivers coped when ‘mpg’ was switched to ‘mpl’. Auto Express found motorists of all ages were confused.

We stopped selling our fuel by the gallon years ago, and it’s about time we brought our in-car fuel economy figures up to date too

Edmund King, AA president

Comment

“Holding on to ‘miles per gallon’ is clearly a generational issue. Across the UK regions, support for the old system was highest in the North East at 56% and lowest in Londonand Northern Ireland at 47%.    Likewise, support for switching to miles per litre held at 31% - 34%,” says Edmund King, the AA’s president.

“Whether a car buyer reacts more in favour of 7.7 v 8.8 miles per litre fuel efficiency rather than 35 v 40 mpg when choosing the next car is a question we will have to ask in the future.

“We stopped selling our fuel by the gallon years ago, and it’s about time we brought our in-car fuel economy figures up to date too. We buy fuel at record prices at the pumps in litres yet the majority of us still think about fuel economy in miles per gallon. These two different measures don’t add up. As fuel economy is vital to motoring today I think in the future we will break with the nostalgia of the past and begin using fuel economy figures which relate to what we buy at the pumps.”

Hard sums

When Auto Express asked 10 motorists to calculate the cost of a 20-mile round trip behind the wheel of a car achieving 45mpg - with a fuel price of 140ppl – only one motorist was able to do the sums in their head – the only one that even knew the conversion rate – roughly 4.5 litres per gallon.

When the same maths problem was posed, but swapping the 45mpg for its equivalent 10 miles-per-litre, however, 60 per cent of the drivers quizzed at the Tesco Extra fuel station forecourt in Watford, Herts, were able to quickly come up with the correct answer - £2.80.

Auto Express Editor-in-Chief, Steve Fowler, said: “When money’s tight, the last thing motorists need is a fuel economy measurement that is virtually impossible for the average driver to convert into real spend at the pumps. Our findings clearly show that motorists could easily do these sums in their head, however, if we started quoting fuel economy figures in miles per litre.”


(7 March 2012)

The AA Populus online Poll was carried out between 16th and 22nd February and attracted 21,408 respondents.

Full article in March 7 issue of Auto Express

 

Flower power

Don't forget the basic checks every couple of weeks;

Fuel, Lights, Oil, Water, Electrics, and Rubber

Need AA Breakdown Cover?

We fix more cars by the roadside than anyone else. Get a quote »

Need AA Breakdown Cover?