I use Shell 91 V-Power.
but during the winter they add some additive and some brand are worst than others.
its like running on 87octane normal gas.
If the ECU is pulling timing at high RPM when it should not , I'm waiting for the next gas fueling .
I use to travel a lot which helped a lot to burn the bad gas but now its a bit hard , so I'm not rushing the tuning
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