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Old 07-17-2018, 01:26 PM   #25
SecondZ28

 
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Drives: 2013 ZL1
Join Date: Dec 2012
Location: Illinois
Posts: 807
Quote:
Originally Posted by fastball View Post
Although fuel economy really hasn't improved that much. The LS1 with the old 4 speed automatic routinely got 30+ on the highway,

If you had 2.73, the optional 3.23 didn't fare as well.

But otherwise I agree. It's actually more impressive to get 30 mpg from a 346cid eight cylinder motor than today's V6
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