Highest Octane For Stock ECU??

Jordo!

We do refer to octane, but it's rated a bit differently -- RON+MON/2 = AKI, whereas most of the rest of the world uses RON.

You can get a close approximation on RON vs AKI tho'; typically .95*RON = approximately equivalent AKI.

Example: The Z recommended octane is 91 AKI and 96 RON

96 RON*.95 = 91.2, very close to the AKI value.

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DEpointfive0

Yeah, that's close.

If the RON is 100 in Japan, 95~ AKI

My money would be something like 94 on America's AKI system because that's probably the highest you CAN find at a normal pump in the US (I think I've seen 94 at the pump in Ohio, or Illinois, or Michigan)

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Mt Tam I am

All this had to do with octane wars years ago (1970's ??). This ended once they settled on the RON+MON/2 = AKI formula.

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