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I finally got my Boxster back. It is going to need to go back to the shop but I'll post about that later.
In my morning brain fog today I put in 8 gallons of regular unleaded (87). I realized my mistake before finishing the fillup and added 2 gallons of premium (93). Should I go get it drained or just drive it? Is there an additive that can add octane to get me through this tank of gas?
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