Yes, your gas mileage may vary. It's ok.

Fuel economy depends on a slew of factors beyond the make and model of your vehicle, including traffic, driving style, landscape, and even weather. For the real scoop on a car's fuel efficiency, check real world economy websites and see what other drivers have been getting. 

|
Redd Saxon/AP/File
A message board flashes a warning to drivers on Interstate 10, the Santa Monica Freeway in Los Angeles, to plan for a closure of the Interstate 405 freeway in this September 2012 file photo. Living in a high-traffic area like Los Angeles may reduce your car's gas mileage, but things like landscape and weather can also play a role.

Despite best intentions, it's always necessary to take EPA fuel efficiency figures with a pinch of salt.

A look at MPG-recording sites like Fuelly or the EPA's own fueleconomy.gov website will show that many drivers have wildly varying economy figures.

And that, of course, is why the slogan "Your mileage may vary" came into being.

People have known this for as long as official tests have been carried out. Certainly since the old VW bug, if the advert you see above is to be believed.

Volkswagen has long since been renowned for its self-deprecating advertising style, often implying that its products might not be the best (particularly during the Beetle era), but selling their virtues with brilliant effect.

And while the Beetle might have achieved impressivefuel economy figures in official testing, VW was more keen to promote the actual figures that real-world driving might result in--in this case, an "honest 25 mpg".

In completely non real-world driving, with a significantly lightened body--and even a jockey behind the wheel to reduce weight, at least for amusement purposes--the Beetle would be capable of up to 84 mpg.

In more recent years, Volkswagen has been on the other side of gas mileage claims. Many drivers in the real world are finding their Volkswagen diesels will achieve comfortably more than that seen in EPA testing--though no carmaker these days would put its neck on the line and suggest their cars beat official figures... and those that can't even match them are at risk of getting sued.

Gas mileage depends on far more than just the type of car you drive. Regularly encounter lots of heavy, stop-and-go traffic? Expect to see less than even the official city figure (unless you drive a hybrid...). Drive 90 mph on the freeway? Don't expect to match that 40 mpg figure. Regularly do 80 miles a day in your Chevy Volt without a top-up charge in the middle? That combined economy figure will seem harder to hit.

Then there's weather, driving style, and landscape. One-way journeys can look pretty bad on your trip-computer if you've been going up-hill a lot (just as well you'll be on an easy downhill glide in the other direction...).

There's maintenance too--keep those tires pumped up and in good condition, and you'll have your best chance of getting good mileage. And accessory usage--keep aircon and lights to a minimum (safety permitting) and your wallet will benefit. Do the complete opposite, and don't expect to match those window stickers.

So while you're shopping for your next car, take a look around some of the real-world economy websites, and see what other drivers have been getting and on what sort of journeys.

You might just save some gas by buying a model that beats its EPA ratings--or at least, reduce the surprise of a model that doesn't...

You've read  of  free articles. Subscribe to continue.
Real news can be honest, hopeful, credible, constructive.
What is the Monitor difference? Tackling the tough headlines – with humanity. Listening to sources – with respect. Seeing the story that others are missing by reporting what so often gets overlooked: the values that connect us. That’s Monitor reporting – news that changes how you see the world.

Dear Reader,

About a year ago, I happened upon this statement about the Monitor in the Harvard Business Review – under the charming heading of “do things that don’t interest you”:

“Many things that end up” being meaningful, writes social scientist Joseph Grenny, “have come from conference workshops, articles, or online videos that began as a chore and ended with an insight. My work in Kenya, for example, was heavily influenced by a Christian Science Monitor article I had forced myself to read 10 years earlier. Sometimes, we call things ‘boring’ simply because they lie outside the box we are currently in.”

If you were to come up with a punchline to a joke about the Monitor, that would probably be it. We’re seen as being global, fair, insightful, and perhaps a bit too earnest. We’re the bran muffin of journalism.

But you know what? We change lives. And I’m going to argue that we change lives precisely because we force open that too-small box that most human beings think they live in.

The Monitor is a peculiar little publication that’s hard for the world to figure out. We’re run by a church, but we’re not only for church members and we’re not about converting people. We’re known as being fair even as the world becomes as polarized as at any time since the newspaper’s founding in 1908.

We have a mission beyond circulation, we want to bridge divides. We’re about kicking down the door of thought everywhere and saying, “You are bigger and more capable than you realize. And we can prove it.”

If you’re looking for bran muffin journalism, you can subscribe to the Monitor for $15. You’ll get the Monitor Weekly magazine, the Monitor Daily email, and unlimited access to CSMonitor.com.

QR Code to Yes, your gas mileage may vary. It's ok.
Read this article in
https://www.csmonitor.com/Business/In-Gear/2012/1027/Yes-your-gas-mileage-may-vary.-It-s-ok.
QR Code to Subscription page
Start your subscription today
https://www.csmonitor.com/subscribe