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Old 04-02-2009, 11:32 PM   #6 (permalink)
EcoModding Apprentice
Join Date: Sep 2008
Location: Indiana
Posts: 131

Impala - '04 Chevrolet Impala base
90 day: 32.84 mpg (US)
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Thanked 2 Times in 2 Posts
The Impala has the base 3.4L v-6. Still in my opinion a very good engine. Now if I could just figure a good way to spread the gearing a little and add 2 more... lol
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