• 19-SEP-2011

All-New Ecotec 2.5L Powers Chevrolet Malibu's Quest for Quietness

2013 Chevy Malibu: Quiet Engine

The 2013 Chevrolet Malibu's new 2.5L engine with direct injection is expected to be one of the quietest and most refined in the segment. It will be available in the new Malibu next summer. The 2.5L development team reduced noise intensity by 40-percent of the Ecotec 2.4L engine, which was already a Ward's 10 Best Engines award winner. It also passed subjective evaluations of what sounds good as the engine climbs through its rpm band. To Malibu's passengers, that is expected to mean a quieter driving experience and a more refined sound as the engine revs to its 7,000-rpm peak. Specifically, the engine's noise frequency signature was targeted, with the aim of pushing radiated noises into a higher frequency range well above 2,000 hertz, which is more pleasing to the ear – particularly in the high-load operating ranges where engine sound is the most intensive.

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