- The 2015 Chevrolet Silverado HD bi-fuel pickups debut at the 2014 Chicago Auto Show.
- The 2015 Chevrolet Silverado 2500HD and 3500HD are capable of running on either gasoline or compressed natural gas.
- The bi-fuel option adds $11,000 to the trucks' bases prices: $32,405 for the 2500HD and $34,680 for the 3500HD.
The bi-fuel option is available on all 2015 Chevrolet Silverado 2500HD and 3500HD pickups with single rear wheels, in regular, double-cab and crew-cab configurations. The 2500HD double cab and crew cab models are on sale now, with 2500HD regular cab and all 3500HD models going on sale in July.
The bi-fuel option adds $11,000 to the cost of each model, according to Tom Wilkinson, a Chevrolet spokesman. Prices for the 2015 Chevrolet Silverado 2500 HD start at $32,405, including a $1,095 destination charge, and the 3500 HD starts at $34,680, including shipping.
"With CNG capability to be offered on all Silverado HD cab configurations, customers have a wider range of choices when it comes to selecting the alternatively fueled truck that matches their needs," said Ed Peper, U.S. vice president for General Motors Fleet and Commercial, in a statement. "And for companies and municipalities that maintain multiple trucks in their fleet, the fuel cost savings of CNG can really add up in a year."
Chevy says that with CNG currently priced about 62 percent less per gallon than gasoline, a truck driven 26,000 miles a year, using CNG 75 percent of the time, could save more than $2,000 annually, compared to a gas-only vehicle.
All 2015 Chevrolet Silverado HD bi-fuel models are powered by a modified version of Chevy's 6.0-liter V8 engine. Running on gasoline, it puts out 360 horsepower and 380 pound-feet of torque, while switching to CNG results in a drop to 301 hp and 333 lb-ft of torque.
The two types of fuel are housed in separate tanks, which can be selected as desired by the driver. When one tank is depleted, the system automatically switches to the other fuel source. Combined range totals an estimated 650 miles.
Although the fuel system is installed by a Chevrolet tier-one supplier, the trucks are covered by GM's standard five-year/100,000-mile powertrain warranty. Chevy notes that all fuel-system parts for bi-fuel models carry GM part numbers and will be available from Chevrolet dealers.
Last November, Ford began producing a bi-fuel version of its 2014 Ford F-150 pickup powered by a 3.7-liter V6 engine, with an estimated range of 750 miles using both gasoline and CNG. And Ford says that by this summer it will be producing a total of eight bi-fuel models. In addition to the F-150, expect to see the F-350 pickup, Transit Connect van and wagon, as well as F-450, F-550 and F-650 trucks able to run on either gasoline or CNG.
Chrysler also has a bi-fuel truck on the market, the 2014 Ram 2500 CNG. Available for commercial and fleet customers, it's powered by a 5.7-liter Hemi V8 engine that the company says can take the truck up to a combined 745 miles, when equipped with an optional 35-gallon reserve fuel tank.
Edmunds says: The 2015 Chevrolet Silverado HD bi-fuel models should appeal to fleet customers as well as other economy-minded buyers.