2012 Mercedes-Benz SLS AMG Roadster Long-Term Road Test

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2012 Mercedes-Benz SLS: Fuel Economy Update for August

September 5, 2013

2012 Mercedes-Benz SLS

We accumulated over 1,800 miles on our 2012 Mercedes-Benz SLS in August and broke through the 30,000-mile barrier. The bulk of the mileage was split between a drive to Monterey and a supporting role in a C7 Corvette comparison test. Take a look at its fuel economy vitals below.

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2012 Mercedes-Benz SLS AMG Roadster: Fuel Economy Update for July

August 2, 2013

2012 Mercedes-Benz SLS AMG Roadster

Even without any official road trips, our 2012 Mercedes-Benz SLS AMG Roadster went nearly 1,700 miles in the month of July. Apparently, we really enjoy driving the SLS. It has used approximately 150 gallons of 91-octane fuel over the last 30 days and we hit an mpg milestone. Can you guess what kind of milestone it was?

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2012 Mercedes-Benz SLS AMG: Fuel Economy Update for June

July 2, 2013

2012 Mercedes-Benz SLS AMG

The Month of May saw another 1,912 tacked on to our long-term Mercedes SLS AMG Roadster. The beast spent quite a bit of time at the dealer waiting for a repair to its top (again). Were it not for Riswick's trip to San Francisco, we would've only logged 1,200 miles or so. James also eked-out an impressive 415.9 miles on a single tank on that trip.

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2012 Mercedes-Benz SLS AMG Roadster: MPG Update for May

June 4, 2013

2012 Mercedes-Benz SLS AMG Roadster

This month, unfortunately, our 2012 Mercedes-Benz SLS AMG Roadster has been out of action for a couple of weeks. The convertible top has malfunctioned once again and the car spent the better part of the last half of the month at the dealership. It's back for now, but still broken. More on that in a forthcoming post.

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2012 Mercedes-Benz SLS AMG Roadster: Running up the Coast Highway in the SLS

May 17, 2013

2012 Mercedes-Benz SLS AMG Roadster

It was a beautiful weekend for a convertible and as luck would have it, I had the key to our 2012 Mercedes-Benz SLS AMG Roadster. Here you'll see it receiving a well-earned bath for its unfailing service.

Click through for a few impressions and photos from lovely Big Sur.

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2012 Mercedes-Benz SLS AMG Roadster: MPG Update for April

May 2, 2013

2012 Mercedes-Benz SLS AMG Roadster

We've been testing this Mercedes SLS AMG Roadster since December. And we've now driven it about 8,000 miles. During the month of April we drove the supercar about 1,700 miles. The mileage included a few highway road trips, plenty of commuting and more than a few fun runs through the Santa Monica Mountains.

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2012 Mercedes-Benz SLS AMG Roadster: Fuel Economy Update for March

April 2, 2013

2012 Mercedes-Benz SLS AMG Roadster

Our monster Mercedes SLS AMG Roadster added 1,062 miles to its odometer in the month of March. It drank six tankfuls of 91-octane fuel and averaged 15.7 mpg.

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2012 Mercedes-Benz SLS AMG Roadster: Fuel Economy Update for February

March 4, 2013

2012 Mercedes-Benz SLS AMG

During February, we finally put some real road under the Mercedes-Benz SLS AMG Roadster's tires, 3,760 miles worth. Most of that came from EIC Oldham's snowy rip to South Dakota (roughly 3,200 miles), and in the past four weeks, the big Benz averaged 16.2 mpg, up almost 3 mpg from its January average. No doubt, a steady diet of Great Plains highways helped nudge that number upwards.

With its mix of road trip and local domestic duties, the SLS returned both its best and worst fills this month, as well as its best range. The roadster's on-board fuel economy meter also proved remarkably accurate. Four times, it was either dead-on or within a few tenths of our calculations.

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2012 Mercedes-Benz SLS AMG Roadster: Fuel Economy Update for January

February 4, 2013

2012 Mercedes-Benz SLS AMG Roadster

This was our first full month in the Mercedes-Benz SLS AMG Roadster. We are getting more comfortable with it, but to be honest, you never get really comfortable driving a nearly $250,000 car.

That's the tradeoff that comes with a car that is otherwise the highlight of most people's day. Whether it's people seeing it drive by on the street, or passengers who bug us for a ride, the SLS is everything a supercar is supposed to be.

That, of course, includes its mileage figures, which are predictably poor. This is a big car, but it's not that big. We've had Suburbans that turned in better than 13.4 miles per gallon. It's still early, though, so as the miles pile up the SLS may bump its overall average up considerably. Not that it matters.

Ed Hellwig, Executive Editor @ 16,010 miles

Worst Fill MPG: 11.2
Best Fill MPG: 17.5
Average Lifetime MPG: 13.4
EPA MPG Rating (City/Highway Combined): 16
Best Range: 314.4 miles
Current Odometer: 16,010 miles

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