These cars don't have a problem with carbon build up like N54s. V Power may have the most detergents, but that doesn't mean our cars run better on it. Driving the crap out of your car will have more an impact on carbon build up than the differences in gasoline detergents.
Ethanol has properties that make it better for forced induction, higher octane rating and it burns cooler than gasoline. Turbo cars pump hot air into the engine, the cooling effect helps make more power.
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