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During a recent online media event, Buick announced a new addition to the powertrain lineup for the 2010 LaCrosse. When we first heard about the LaCrosse in January, it was to be powered by the 3.0-liter and 3.6-liter direct injected V6s. Around the end of the year, Buick will add the new direct injected 2.4-liter four cylinder as a base option. Like the V6s, the 182 hp engine will be paired up with a 6-speed automatic transmission although the four will use the smaller 6T40 while the sixes use the larger 6T70. Buick expects the four-cylinder LaCrosse to achieve 20 mpg in the city and 30 mpg on the highway. GM points out that its main competitors, the Lincoln MKZ and Acura TL are not available with four cylinder engines. As gas prices are on the rise again, Buick expects about a quarter of all LaCrosse sales to be four cylinders.



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For release: June 22, 2009, 12:01 a.m. EDT

BUICK TO ADD FUEL EFFICIENT ECOTEC 2.4L FOUR
2010 LACROSSE

New Engine Joins Two V-6s for an All

DETROIT – A fuel-efficient, direct injected Ecotec 2.4L four
engine offered in the 2010 Buick LaCrosse luxury sedan. Backed by a fuel
automatic transmission, the new powertrain combination is expected to deliver fue
of 30 mpg highway and 20 mpg city*
its segment.

"Buick LaCrosse customers will have the fuel
engine, a four-cylinder that is not availa
Acura TL," said Susan Docherty, Buick
rear-seat entertainment system and remote starting are other technologies that are segment
exclusives, contributing to LaCrosse's balanced package of design, performance and
intelligent technology."

The Ecotec 2.4L four-cylinder joins the lineup later this year as the standard engine in the
LaCrosse CX. Direct injection technology helps it deliver 182 horsepower (136 kW) and 172
lb-ft. of torque (233 Nm). Buick expects about 25 percent of customers wi
equipped models.

The 2.4L's injection of fuel directly into the combustion chamber enables a higher
compression ratio to increase efficiency and horsepower. That means more power is made
with less fuel and lower emissions. In fact, cold
percent with direct injection. Engineers tuned the Ecotec 2.4L engine to deliver greater torque
at lower rpm and build it smoothly toward its peak at 4,900 rpm, giving the Buick LaCrosse
excellent performance in all driving conditions.

"Direct injection is a key component of GM's ongoing strategy to use advanced propulsion
technology to help us deliver more fuel
Stephens, vice chairman, Global Product Development. "
pathways to achieve increased efficiency and to diversify energy sources
For release: June 22, 2009, 12:01 a.m. EDT
BUICK TO ADD FUEL EFFICIENT ECOTEC 2.4L FOUR-CYLINDER ENGINE TO ALL
6s for an All-Direct Injection Lineup
efficient, direct injected Ecotec 2.4L four-cylinder engine will be the third
engine offered in the 2010 Buick LaCrosse luxury sedan. Backed by a fuel-saving six
automatic transmission, the new powertrain combination is expected to deliver fue
of 30 mpg highway and 20 mpg city*– making LaCrosse one of the most fuel-efficient cars in
"Buick LaCrosse customers will have the fuel-efficient option of the Ecotec 2.4L direct injection
cylinder that is not available by key competitors, such as the Lincoln MKZ and
Acura TL," said Susan Docherty, Buick-Pontiac-GMC vice president. "Features such as a
seat entertainment system and remote starting are other technologies that are segment
LaCrosse's balanced package of design, performance and
cylinder joins the lineup later this year as the standard engine in the
LaCrosse CX. Direct injection technology helps it deliver 182 horsepower (136 kW) and 172
ft. of torque (233 Nm). Buick expects about 25 percent of customers will opt for 2.4L
The 2.4L's injection of fuel directly into the combustion chamber enables a higher
compression ratio to increase efficiency and horsepower. That means more power is made
with less fuel and lower emissions. In fact, cold-start emissions are reduced by up to 25
percent with direct injection. Engineers tuned the Ecotec 2.4L engine to deliver greater torque
at lower rpm and build it smoothly toward its peak at 4,900 rpm, giving the Buick LaCrosse
driving conditions.
Direct injection is a key component of GM's ongoing strategy to use advanced propulsion
technology to help us deliver more fuel-efficient cars today and in the future," said Tom
vice chairman, Global Product Development. "GM is using multiple technology
pathways to achieve increased efficiency and to diversify energy sources – and we're applying
CYLINDER ENGINE TO ALL-NEW
cylinder engine will be the third
saving six-speed
automatic transmission, the new powertrain combination is expected to deliver fuel economy
efficient cars in
efficient option of the Ecotec 2.4L direct injection
ble by key competitors, such as the Lincoln MKZ and
GMC vice president. "Features such as a
seat entertainment system and remote starting are other technologies that are segment
LaCrosse's balanced package of design, performance and
cylinder joins the lineup later this year as the standard engine in the
LaCrosse CX. Direct injection technology helps it deliver 182 horsepower (136 kW) and 172
ll opt for 2.4L-
The 2.4L's injection of fuel directly into the combustion chamber enables a higher
compression ratio to increase efficiency and horsepower. That means more power is made
start emissions are reduced by up to 25
percent with direct injection. Engineers tuned the Ecotec 2.4L engine to deliver greater torque
at lower rpm and build it smoothly toward its peak at 4,900 rpm, giving the Buick LaCrosse
Direct injection is a key component of GM's ongoing strategy to use advanced propulsion
said Tom
GM is using multiple technology
and we're applying CYLINDER ENGINE TO ALL-NEW
cylinder engine will be the third
saving six-speed
automatic transmission, the new powertrain combination is expected to deliver fuel economy
efficient cars in
efficient option of the Ecotec 2.4L direct injection
ble by key competitors, such as the Lincoln MKZ and
GMC vice president. "Features such as a
seat entertainment system and remote starting are other technologies that are segment
LaCrosse's balanced package of design, performance and


them where they make the most sense for customers when it comes to efficiency,
performance and cost."

Every engine in the LaCrosse lineup is direct injected and matched with a fuel-saving six
speed automatic transmission. Along with the Ecotec 2.4L, a new, direct injected 3.0L V-6 is
offered and a larger-displacement, more powerful 3.6L V-6 is standard on the LaCrosse CXS
model.

Quiet, low-maintenance performance
As with the 3.0L and 3.6L V-6 engines, the Ecotec 2.4L is designed to deliver exceptional
quietness with low maintenance requirements and minimal environmental impact – including
100,000-mile service life ratings for the spark plugs and accessory drive belt. It is also
equipped with GM's Oil Life system, which uses a sophisticated algorithm to determine when
it's time for an oil change. The system calculates the oil life based on a variety of closely
monitored variables, such as engine speed, temperature, load and others, allowing fewer oil
changes over the life of the vehicle for a significantly reduced amount of used oil that must be
recycled.

LaCrosse and Buick's renaissance
The 2010 Buick LaCrosse luxury sedan is the newest example of the globally influenced
product renaissance at Buick. It offers all-wheel drive, a suite of advanced intelligent personal
technologies and safety features, and great styling that blends heritage cues with modern
design.

"The new LaCrosse builds on the success of Enclave as the next step in Buick's renaissance,"
said Docherty. "It will attract a whole new type of buyer to our dealerships, as Buick
strengthens its position as one of GM's core brands."

General Motors Corp. (NYSE: GM), one of the world's largest automakers, was founded in
1908, and today manufactures cars and trucks in 34 countries. With its global headquarters in
Detroit, GM employs 235,000 people in every major region of the world, and sells and
services vehicles in some 140 countries. In 2008, GM sold 8.35 million cars and trucks
globally under the following brands: Buick, Cadillac, Chevrolet, GMC, GM Daewoo, Holden,
Hummer, Opel, Pontiac, Saab, Saturn, Vauxhall and Wuling. GM's largest national market is
the United States, followed by China, Brazil, the United Kingdom, Canada, Russia and
Germany. GM's OnStar subsidiary is the industry leader in vehicle safety, security and
information services. More information on GM can be found at www.gm.com.

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