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Hi all, the best fuel i can get where i live has a 91 octane rating where Porsche recommends at least 93. Does anyone use, or even think its worth looking at type of octane additives. If so, any recommendations?

Thanks.
 

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Hi all, the best fuel i can get where i live has a 91 octane rating where Porsche recommends at least 93. Does anyone use, or even think its worth looking at type of octane additives. If so, any recommendations?

Thanks.
I keep a bottle of the good ol' tried-and-true STP stuff in my car. Because of Hurricane Harvey, we had shortages of premium fuel in North Texas for a few days, which is why I decided to keep a bottle on the car at all times.

During road trips I keep a couple bottles of Royal Purple Max-Boost in the car. Bulkier than the STP but higher quality.
 

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Hi all, the best fuel i can get where i live has a 91 octane rating where Porsche recommends at least 93. Does anyone use, or even think its worth looking at type of octane additives. If so, any recommendations?

Thanks.
When the Access Ports are released they will have a 91oct tune.

As an aside if you get stuck with a tank of regular gas just don't push the car hard and it'll be fine.
 
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