CNG Process for Full-Size Vans Nears Completion

DETROIT, July 13 /PRNewswire/ — General Motors has finalized the production
process for its Compressed Natural Gas (CNG) powered Chevrolet Express and GMC
Savana full-size vans, allowing the company to deliver fleet customers complete
vehicles with a fully integrated and dedicated CNG fuel system starting this
fall.

GM announced in May that it would be the only manufacturer to offer a one-source
van CNG option, allowing its customers to focus on their business rather than on
contracting the conversion of their vehicles.

“Our focus from the beginning has been to offer fleet customers a simple ‘check
the box’ approach with our CNG Chevrolet Express and Savana vans,” said Brian
Small, general manager, GM Fleet and Commercial Operations. “Our robust
production process is a key enabler and certainly separates us from any
competitive offering.”

The vans will meet all Environmental Protection Agency (EPA) and California Air
Resources Board (CARB) emission certification requirements, and will be fully
compliant with applicable motor vehicle safety standards.

Each CNG Chevrolet Express or GMC Savana van also will be covered by GM’s
three-year, 36,000-mile new vehicle limited warranty and five-year, 100,000-mile
limited powertrain warranty.

GM’s Global Powertrain and Vehicle Engineering Centers are being leveraged to
bring their global expertise in gaseous fuel systems together for this vehicle
system.

Providing fleets with a convenient, all-in-one CNG vehicle begins with GM’s
Vortec 6.0L V8 engine. GM engineers modified this proven power plant with
hardened exhaust valves, and intake and exhaust valve seats for improved wear
resistance and durability with gaseous fuel systems.

These hardened engines will then be assembled into the Chevrolet Express and GMC
Savana vans at GM’s Wentzville, Mo. plant.

In addition, GM has chosen Productive Concepts (PCI), an alternative fuels
conversion company, to become an integral part of its production. PCI will
integrate the CNG fuel delivery and storage system with the hardened engine at
its facility in Union City, Ind. PCI also will work to ensure full emissions
compliance.

Once the CNG system is integrated into the vans at PCI, they can be shipped to
many specialty vehicle manufacturers to have commercial equipment added, or
directly to GM dealers.

About General Motors:

General Motors, one of the world’s largest automakers, traces its roots to 1908.
With its global headquarters in Detroit, GM employs 205,000 people in every
major region of the world and does business in some 157 countries. GM and its
strategic partners produce cars and trucks in 34 countries, and sell and service
these vehicles through the following brands: Buick, Cadillac, Chevrolet, GMC, GM
Daewoo, Holden, Opel, Vauxhall and Wuling. GM’s largest national market is the
United States, followed by China, Brazil, Germany, the United Kingdom, Canada,
and Italy. GM’s OnStar subsidiary is the industry leader in vehicle safety,
security and information services. General Motors acquired operations from
General Motors Corporation on July 10, 2009, and references to prior periods in
this and other press materials refer to operations of the old General Motors
Corporation. More information on the new General Motors can be found at
www.gm.com.

SOURCE General Motors