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Old 12-30-2015, 12:22 AM   #45 (permalink)
Focus-Ak
EcoModding Apprentice
 
Join Date: Sep 2014
Location: Alaska
Posts: 100

n/a - '05 Ford Focus ZX3
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On cars used primarily for short trips, a WAI helps with faster warm-ups, which gives low idle speeds earlier in a trip. Especially when combined with hypermiling techniques, this improves per-tank or per-trip mileage.
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