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Buick’s eAssist Delivers With Big Mileage Gains

Small car fuel economy, big car roominess.

by on Jul.21, 2011

Buick makes the eAssist system standard on the 2012 LaCrosse sedan.

There are plenty of small cars on the market now nudging into 40 mpg territory, but for those who want great mileage, the sacrifice is usually in the form of roominess and comfort.  Buick, with the debut of the new eAssist system – standard on the 2012 LaCrosse – aims to let buyers have their automotive cake and eat it, too.

The 2012 Buick LaCrosse with the now-standard eAssist system also demonstrates that smaller, hybridized powertrains can actually deliver a peppy, even more aggressive ride than the V-6s and V-8s Americans are used to.

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Using a variety of technology and exterior enhancements, the 2.4-liter, Ecotec 4-cylinder engine on the 2012 Buick LaCrosse with e-Assist gets an estimated 36 miles per galon on the highway and 25 mpg in the city.  That represents a 20% improvement in highway mileage and a 32% boost in city mileage over the V-6 package of prior years.

How does it get there?

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