IMPCO Gets EPA Nod for Bi-Fuel CNG Trucks
IMPCO Automotive has received EPA certification to install its bi-fuel CNG systems in a trio of General Motors trucks, including the Silverado, Sierra, and Tahoe.

Photo courtesy of IMPCO Automotive.

Photo courtesy of IMPCO Automotive.
IMPCO Automotive has received certification from the Environmental Protection Agency (EPA) to install its bi-fuel compressed natural gas (CNG) systems in a trio of General Motors trucks, including the 2015 Chevrolet Silverado 1500, GMC Sierra 1500, and Chevrolet Tahoe 1500.
IMPCO's bi-fuel CNG conversion consists of its adaptive calibration technology that ensures a robust and durable product for the end user, while maximizing the efficiency of the CNG, according to the company. The converted vehicles feature the 5.3-liter EcoTec3 direct-injected engine.
IMPCO, which is General Motors' primary alternative fuel system supplier in North America, also offers bi-fuel CNG conversions for GM's 2500/3500 truck series and the Ford F-250.
More Green Fleet

EV Charging Use Is Outpacing Infrastructure Growth
ChargePoint’s 2026 Charging Forward Report points to rising charger use, higher-powered charging, commercial vehicle electrification, and energy-management technology. Here’s what fleets should know.
Read More →
Merchants Fleet Reports 290M EV Miles as Fleets Navigate Changing Electrification Market
From millions in operating savings to hundreds of millions of EV miles, Merchants Fleet’s latest report reveals what’s working and what’s changing in fleet electrification.
Read More →
The EV Breakdown Nobody's Talking About: Why Most Electric Vehicle Roadside Calls Aren't Mechanical Failures
Here's why EV breakdowns are widely misunderstood.
Read More →
ChargePoint Now Available in Energy Pass
ChargePoint and additional planned charging network integrations were added to GM's Energy Pass.
Read More →First Look: Slate Auto's Electric Fleet Pickup
Could an affordable, modular EV pickup make electrification more practical for fleets?
Read More →
Slate Debuts Colorful, Unique EV Models
A recent media and client event, studded with electric vehicles dressed up on platforms, planted a new position for the manufacturer in the wider EV market. Fleets will find cost-saving advantages.
Read More →
Slate Electric SUV, Pickup Switchable Model Aims For Light-Duty Fleets
Everything about this EV is counterintuitive and understated, making it stand out from the crowd.
Read More →
Inspiration Mobility Acquires Key Electrada Assets
Inspiration Mobility Group has acquired select assets of Electrada, adding the fleet electrification provider's team, technology, and charging infrastructure development capabilities to its energy management business.
Read More →
Why America’s Most Popular Vehicle is So Hard to Electrify
Turning America’s favorite workhorse electric means balancing range, payload, charging infrastructure, and price, an equation automakers are still trying to solve.
Read More →
