What fuel are you running, has it just started to happen, or did it do it from new.
If you are in eastern states, remember that most regular unleaded now contains at least 10% ethanol. It sounds by putting in the additive, that it liked the upped ron increase in the fuel.
Try it with a tank of 95, or 98 and see what happens.
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Turbos make torque and torque makes FUN....
Corky Bell.
2010 LV Focus XR5
BG Mazda Familia Rally Car (KH Tx3 in disguise)
BF Series II V8 Ute
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