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JCB JCB is offline
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Posts: 232
Join Date: Feb 2020
Car: 2018 Q50 3.0t
Default 10-17-2021, 07:08 AM

Looks like the car is pulling timing. Fuel additive is not doing it for you. Can you get true 93 octane? If not, many have had success mixing in a bit of E85 to raise the octane. Generally the octane boost out of a bottle is frowned upon and looks like its not doing the job for you anyway. Many believe the additives can foul plugs and other components.
For now I would back down the boost to map 1 until you can clear that tank of gas and try again.
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