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Originally Posted by Headless
If its a newer car you dont need anything more then unleaded...
93 is for cars like my 71 mustang which will ping and detonate if run at a lower octane... Now the newer cars...
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I run an 04 mazda3 with full headers, straight exhaust, intake, computer work, and too much to list... I've taken apart 4 cyl engine blocks... some places you get gas from is just shitty. Cheveron Silver is good, clear as water. Mobile is good too.