New Fuel Efficient Ecotec Engine for the 2010 Buick LaCrosse A fuel-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-speed automatic transmission, the new powertrain combination is expected to deliver fuel economy of 30 mpg highway and 20 mpg city*– making LaCrosse one of the most fuel-efficient cars in [...]
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