Six months after announcing it would expand the Impala lineup with a segment-exclusive CNG-capable model, Chevy has revealed pricing for the 2015 Impala bi-fuel sedan will open at $38,210 when it goes on sale in the fourth quarter. Aimed primarily at fleet buyers, this more environmentally friendly iteration of Chevy's full-size 4-door also will be available to individual customers and offer the choice of base LS or LT trim levels. 

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V6 runs on gasoline or CNG

All versions of the CNG-capable Impala will be fitted with a purpose-modified version of GM's direct-injected VVT 3.6-liter V6 that features hardened valves and valve seats to withstand the added internal stress. The bi-fuel Impala supplements its conventional gasoline tank with a trunk-mounted compressed natural gas tank that holds the equivalent of 7.8 gallons of gasoline. The system is designed to run on CNG until the tank is emptied and then seamlessly and automatically switch to gasoline. However, the driver can manually choose between the two at any time by pressing a button on the dash. 

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Final EPA figures for the 2015 Impala bi-fuel sedan have not yet been released, but GM's internal testing numbers continue to indicate the combined range should be 500 miles. In addition to producing significantly fewer greenhouse gas emissions, CNG currently costs about $1.25 per gallon less than gasoline. 

More CNG and Bi-Fuel Vehicles...

Chevrolet will offer CNG bi-fuel versions of the 2015 Silverado 2500/3500 HD models

The 2015 GMC Sierra 2500/3500 HD pickups are available with a CNG bi-fuel option

The 2014 Honda Civic Natural Gas model is one of our 10 Best Green Cars of 2014 


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