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Old 09-26-2010, 10:56 AM   #4
okyankee
 
Drives: 2010 SILVERADO
Join Date: Jan 2009
Location: Yukon, OK
Posts: 347
i had a 2008 version. it will run on regular but premium is recomended because the computer adjusts tot he lower grade fuel and reduces power. also it makes the motor tick more than normal. when i put in the good stuff the tick went away.
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