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I have owned a 2002 Z66 that I loved and a 2004 Z71 that I just totalled. I have a 2008 LTZ lined up 350 miles away to replace it. However, I've read the Active Fuel Management (8 to 4 cylinder fuel efficiency) makes highway power less than satisfactory. Do the new Avalanches have less power than the older models? Thanks
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Do new Avalanches have less power?
