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The Detroit News has put together a rundown of all the little tweaks automakers are applying, as quickly as possible, to help current models achieve better fuel economy. Since a wholesale re-engineering of every vehicle is impossible, manufacturers are switching to low-rolling-resistance tires, re-gearing transmissions, moving from belt-driven accessories to electric, and so on. Each change accounts for only a tiny improvement on its own, but added up, the results can make a big difference. More »
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