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Old 12-25-2011, 03:23 PM   #18
1st Gear Newbie
Join Date: Feb 2010
Location: Toronto
Posts: 2
^ When I had my Silvia.... I used 94 sunoco and 91 shell to test which would give me the best results.

Shells 91 octane gas is SO much better with gas mileage and the car was more powerful!
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