Originally Posted by ukoldschool
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I take it your car has its standard ECU replaced with a MOTEC then? because the standard GTA ECU's fuel setting cannot be changed.
which is why its not worth spending money on increased RON fuel, unless you have shares in BP/Shell etc
no matter what anyone tells you - you are wasting your time on an Alfa.
Some cars from outside the EU (mainly Japan) have ECU's that can adapt, but not the ECU in a GTA
With any ECU if you can alter the ignition timing you can map for 98RON. When someone says that a car is mapped for 98RON this mean that it runs quiet advanced ignition timing. If anyone claims that they can remap the GTA ECU but they cannot alter the ignition timing then they are lying. If you run an old engine with dizzy cap you can map it to run 98RON by increasing the timing advance manually by rotating the distributor.