2015 Silverado HD CNG 6.0L Bi-Fuel V8 is a Natty G Revolution!

silverado cngThis energy revolution will not be televised.

It will rarely draw stares or have other drivers following you to ask questions.

The 2500HD CNG is all-new from Chevrolet this year and marks the beginning of a potentially game-changing new trend in heavy-duty pickup truck efficiency.

As nice as a diesel engine’s extra 25-percent fuel efficiency is, what about a powertrain package that doubles overall range and can be flipped between gasoline and compressed natural gas at the touch of a button?

If there are no CNG filler stations on your route, simply run the truck on gasoline and enjoy is 360horsepower and 380-pound-feet of torque. When a CNG fillup is possible, get a full tankful in less than five minutes to enjoy an extra 300-miles of range, and only a modest drop in power to 301-horsepower and 333-pound-feet of torque when running on Natty G.

The 2015 Silverado 2500HD and 3500HD Bi-Fuel trucks are cheaper only slightly pricier than the big diesel engine upgrade, come from the factory with rigorous safety testing completed, and a full warranty. The same cannot be said of aftermarket CNG conversions. The one issue is the option price. At $9,500, this is $2,000 more than the DuraMax diesel. Even so, there are major advantages in clean and cheap natural gas – which generally costs about a third the price of gasoline on a gallon-equivalent basis. It emits about half the tailpipe pollutants, for those that care about such things.

Last hurdle: Where are these CNG filler stations?

They are anywhere with heavy industry, near ports, and at electric company sites. Our nearest one in Charleston is about 20 minutes away. So it is not yet available everywhere— but the trucks also have 4G LTE and a navigation system pre-loaded with them as Points of Interest, or can be searched for right from the voice-controlled Chevrolet MyLink.

While the whole auto world chases the horizon seeking hydrogen or Tesla’s giga-battery dreams, for many hard-working Chevy trucks — the future is already here.

Just do not expect much fanfare. No parades will be thrown, nor eco awards given.

Just a 13,000-plus pound tow rating, and far fewer stops to fill up either tank.


2015 Silverado HD CNG

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Body style / driveline:2-3 passenger regular cab or 5-6 passenger double cab, 5-6-passenger crew cab; 3/4-ton or 1-ton; 2- and 4-wheel-drive heavy-duty pickups
Construction:body on frame
Manufacturing location:Fort Wayne, Ind., and Flint, Mich.



 Vortec 6.0L V-8 (L96 – gasoline only)Vortec 6.0L V-8 (LC8 – gas or CNG)Duramax 6.6L Turbo-Diesel V-8 (LML)
Type:6.0L V-86.0L V-86.6L V-8
Valvetrain:overhead valve w/ variable valve timingoverhead valve w/ variable valve timingoverhead valve, four valves per cylinder
Fuel delivery:sequential fuel injectionsequential fuel injectiondirect injection diesel with high-pressure common rail
Compression ratio:9.6:19.6:116.0:1
Horsepower (hp / kW @ rpm):360 / 268 @ 5400360 / 268 @ 5400 (gas)301 / 225 @ 5000 (CNG)397 / 296 @ 3000
Torque (lb-ft / Nm @ rpm) :380 / 515 @ 4200380 / 515 @ 4200 (gas)333 / 452 @ 4200 (CNG)765 / 1037 @ 1600
Recommended fuel:regular unleadedregular unleaded or CNGdiesel or B20



 Hydra-Matic 6L90 Allison 1000
Type:six-speed automatic (with Vortec 6.0L)six-speed automatic (with Duramax 6.6L)
Final drive ratio:4.10 or 3.733.73


Chassis / Suspension

Front:long- and short-arm independent front torsion bar suspension
Rear:semi-elliptic two-stage multileaf spring (2500HD) or three-stage spring (3500HD)
Steering type:integral power-assisted recirculating ball with 16.1 ratio


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About The Author

Tom Burkart is the founder and managing editor of Car-Revs-Daily.com, an innovative and rapidly expanding automotive news magazine.He holds a Journalism JBA degree from the University of Wisconsin - Madison. Tom currently resides in Charleston, South Carolina with his two amazing dogs, Drake and Tank.Mr. Burkart is available for all questions and concerns by email Tom(at)car-revs-daily.com.