the engine occasionally misses a spark/ticks a itty bit if I use 91 AKI (95 RON gas) with 10% Ethanol. But there is no problem when I use 94 AKI (98 RON octane)
Weird. The posted minimum octane rating for fuel injected Vaz/Ladas is 91AKI/95RON.
And the compression rate is 9.8:1
I have CAI too, so it can't be that either.
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