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Old 12-10-2012, 09:39 PM   #5
swizlstik

 
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Drives: 2018 Garnet ZL1
Join Date: Nov 2011
Location: Surprise, AZ
Posts: 2,183
I was filling up at Murphy's for about a month and noticed my car being a bit sluggish. I let it get to almost empty and filled up with Sunoco and the difference was almost night and day. True believer in top tier gas!!
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