Fuel addictives are complete crap imo. You are better off getting Shell V-power/BP Ultimate/Caltex Vortex (98 octane petrol) which has cleaning agents in it.
If you are trying to say when you plant your foot to the floor to acceleration and there is a delay in acceleration. Then that's normal. It's a complaint some people have with the Aurion. It's the ECU trying to calculate what you are trying to do.
I asked him what the width of the rims were and he kept saying the width of the tyres. Then when he gets what i mean he doesn't know the answer to it. FAIL