Places to buy xylene

[quote=“13005TEDGP,post:5,topic:32664"”]

I wouldnt do it unless you have proof of gains. Race gas is simple-er, and wont dry out your rubber seals.
Like Mike said, this topic has been beat to death on LOTS of car forums. Its split down the middle of people that are for and against. I wouldnt doubt this going 5pgs.

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It’s plenty proven in the 944 world. Whether it’s the best solution or not is up for debate, but there is a long history of the top 944 guys running a mix.