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40mpg Possible in a 98 Buick Lesabre 3.8?
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07-27-2009, 10:38 PM
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2000mc
EcoModding Apprentice
Join Date: Oct 2008
Location: IA
Posts: 117
saturn
- '99 sc1
90 day:
35.67
mpg (US)
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in theory... sure... more likely if you made a long enough road trip that the car was already warmed up, filled the tank, drove your 47mph untill the tank was empty....
2000mc
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