Thread: How to build a muscle car for better fuel economy?
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Old 01-27-2018, 03:33 PM   #275 (permalink)
JSH
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Adventure Seeker - '04 Chevy Astro - Campervan
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Quote:
Originally Posted by gumby79 View Post
So you mean the 6.2 is a -1 mpg at 17mpg when hes starting from 18mpg.
Nope.

His V8 Firebird is rated at 15 city / 24 highway / 18 combined
The 6.2L V8 auto is rated at 17 city / 27 highway / 20 combined
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