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How Accurate are MPG Figures?

October 30, 2014

As we all know, high gas prices are here to stay, which means fuel efficiency has become an important factor when it comes to choosing a new car.

However, consumers need to be aware that the MPG shown on a car's window sticker may not be completely accurate. Consumer Reports recently conducted a study to see how accurately the promised city, highway and combined MPG stood up in the real world.

At the top of the list is the Honda CR-Z EX, which according to Consumer Reports promised a 34 overall MPG and performed better with an experienced overall MPG of 35. And on the other side of the spectrum is the Lincoln MKZ Hybrid, which fell 11 points short of its promised 45 combined MPG when tested. Below is a look at 19 vehicles tested by Consumer Reports and their results.

Consumer Reports MPGEPA MPG 
VehicleOverallCity/HighwayCombinedCity/HighwayDifference EPA vs. CR Overall
Honda CR-Z EX3526/453431/38-1
Toyota Prius V Three4133/474244/401
Lexus CT 200h4031/474243/402
Toyota Camry Hybrid XLE3832/434040/382
Lexus RX 450h2622/312930/283
Subaru XV Crosstrek Hybrid2821/353129/333
Honda Insight EX3829/454241/444
Lexus ES 300h3628/444040/394
Toyota Avalon Hybrid Limited3629/434040/394
Honda Civic Hybrid4028/504544/475
Hyundai Sonata Hybrid3324/403836/405
Ford C-MAX Hybrid SE3735/384345/406
Infiniti Q70 Hybrid2517/333129/346
Toyota Prius Four4432/555051/486
Honda Accord Hybrid4032/474750/457
Toyota Prius C Two4337/485053/467
Ford Fusion SE Hybrid3935/414747/478
Volkswagen Jetta Hybrid3729/454542/488
Lincoln MKZ Hybrid3429/384545/4511

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- Gregg Fidan

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Gregg Fidan

About: Gregg Fidan


Gregg Fidan is the founder of RealCarTips. After being ripped off on his first car purchase, he devoted several years to figuring out the best ways to avoid scams and negotiate the best car deals. He has written hundreds of articles on the subject of car buying and taught thousands of car shoppers how to get the best deals.

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