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Old 09-21-2012, 07:04 PM   #48
zl1bro
 
Drives: 2013 ZL1 M6 SIM AGM mono stripe
Join Date: Jul 2012
Location: Boston
Posts: 453
Quote:
Originally Posted by s_c5519 View Post
AZ and CA are both 91...
Thanks... so that means my zl1's first tank of gas was 91 octane.. just put in a tank of 93 today...
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