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Consumer Reports Said Ford's 47 mpg claim is too high for both vehicles

There are questions regarding Ford's C-Max Hybrid and Fusion Hybrid's advertised 47 mpg, and the U.S. Environmental Protection Agency (EPA) intends to check it out.

Ford's C-Max Hybrid and Fusion Hybrid both show an estimated 47 mpg, but Consumer Reports recently pointed out that neither are living up to the automaker's claims. According to its testing, the C-Max Hybrid received 35/38/37 mpg for city/highway/combined. For the Fusion Hybrid, it found 35/41/39 mpg for city/highway/combined.

"Yes, the disclaimer on EPA fuel-economy labels notes that your results may differ," said Consumer Reports. "But the overall mpg for these C-Max and Fusion models is off by a whopping 10 and 8 mpg, respectively, or about 20 percent. Our overall-mpg results are usually pretty close to the EPA's combined-mpg estimate. Among current models, more than 80 percent of the vehicles we've tested are within 2 mpg."

2013 Ford Fusion Hybrid

Ford responded to the claims, saying that mileage varies among hybrids.

"Early C-Max Hybrid and Fusion Hybrid customers praise the vehicles and report a range of fuel economy figures, including some reports above 47 mpg," said Ford spokesman Wes Sherwood. "This reinforces the fact that driving styles, driving conditions and other factors can cause mileage to vary."

While all vehicles must undergo the EPA test for fuel efficiency, the test isn't actually administered by the government agency. Instead, automakers perform the test and the EPA reviews it. In many cases, factors like temperature and speed result in gas mileage being lower than the EPA sticker.

2013 Ford C-Max Hybrid

Ford's testing found 47 mpg overall for both vehicles, and while it's common for the EPA to review such claims and discover a variation in gas mileage, Consumer Reports complained that this is a pretty big gap between Ford's findings and its own.

The EPA said it will "look at the report and data."

Back in December 2011, Consumer Watchdog called on the EPA to investigate Hyundai over its fuel economy claims. Hyundai claimed that its Elantra achieved 29 MPG in the city and 40 MPG on highway. However, the organization received a higher-than-usual number of complaints that real-world mileage was in the mid-20 mpg range.

From there, the EPA investigated Hyundai for misleading mileage claims and found that the fuel economy estimates of most of its 2012-2013 models were inflated. The same goes for Kia. Both Kia and Hyundai will be lowering the fuel economy estimates on the majority of their 2012 to 2013 models after EPA testing discovered a gap between its data and what both of the companies are claiming.

Hyundai and Kia admitted to overstating the estimated fuel economy on window stickers of about 900,000 vehicles sold since late 2010. Reports show that Hyundai alone could spend $100 million trying to fix the fiasco.

Source: The Detroit News

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RE: Yea
By Brandon Hill on 12/10/2012 12:42:51 PM , Rating: 5
Bitching about missing 1 or 2 mpg... yeah, waste of money.

But an 8 or 10 mpg difference? They sure as hell better look into that!

RE: Yea
By cknobman on 12/10/2012 2:27:08 PM , Rating: 2
I wonder if it is something with the actual fuel causing the lower mpg.

I say this because I bought a 2011 Toyota Prius and for the first year I had no problems getting the rated 50mpg out of it.

Here in the last 6 months though no matter how I drive it I can barely get 47 mpg out of it. I put new tires on it (same tires that came with it that are the low rolling resistance), never miss a regular scheduled maintenance, make sure air filter is cleaned, and checked verything I can think of and found no other reasons why the mpg has gone down 3-5 mpg.

RE: Yea
By Manch on 12/11/2012 8:27:05 AM , Rating: 2
Could be. Try replacing your fuel filter.

RE: Yea
By knutjb on 12/10/2012 2:37:05 PM , Rating: 2
Toyota got busted for programing a test sensing loop to use more battery only on the EPA's test run. I cannot say that is what happened here. The review I saw on motorweek said they averaged 35 "in spirited driving." When cars are fun to drive we tend to drive in a more spirited manner.

Yes they should look at all involved, including see why the end user is getting the results they got. Some of the variables are fuel types/blends in different parts of the country, more ethanol and certain blends give less mpgs, testing equipment, related programing, and the test operators. This may have so many variables it might take a while to sort out in a definitive manner.

Also, how reliable is the EPA's testing protocol?

RE: Yea
By cknobman on 12/10/2012 3:29:59 PM , Rating: 2
I just tried finding information on your claim of Toyota being busted for a test sensing loop and came up with nothing.

Can you post a link?

RE: Yea
By Rukkian on 12/10/2012 5:03:01 PM , Rating: 2
I actually thought that was on Honda Civic hybrid where they had a recall and changed the % of the battery that could be used, which also lowered the mileage, but having never owned a hybrid, I could be wrong.

RE: Yea
By knutjb on 12/11/2012 2:21:14 AM , Rating: 2

I was told by someone in the industry when the EPA made its change. They added random variations to make it harder to cheat, the older method was very predictable. Notice the prius had the biggest drop~25%.

RE: Yea
By cknobman on 12/11/2012 9:53:39 AM , Rating: 2

Man that was a long time ago though.

RE: Yea
By Keeir on 12/10/2012 7:14:53 PM , Rating: 2
Too soon....

Have the Fusion and C-Max been out a full year yet?

Ambient Temperatures can make a large difference in fuel consumption for any car... It may be even more extreme for a Hybrid.

I thought that Fusion and C-Max only started getting delievered this Fall... so we have low mileage and likely colder than average real world data so far?

RE: Yea
By Dr of crap on 12/11/2012 8:17:24 AM , Rating: 2
WHY !!??!!

You didn't pay enough taxes yet?

"We basically took a look at this situation and said, this is bullshit." -- Newegg Chief Legal Officer Lee Cheng's take on patent troll Soverain

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