Does it mean if u have ur car tuned for 98, using p100 will actually means runing lean? Since u use up e85 more quickly than 98, i assume 100 units of petrol react with 100 unirs of air. 200 unit of pure ethanol react with 100 unit of air. If p100 has 90 unit of 98 and 10 of air, then 100 of p100 only need 95 of air. Hence, would p100 cause lean condition, since fuel deliver can only be adjusted with certain amount by ecu?


using the Perth-WRX mobile app

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MY08 STI 422whp at 1.5bar on E85, built by Diversion Garage, assembled and tuned by EvoR

Update from new owner: 375whp at 1.4bar on 98, at Tokyo Motorsport

cheers for the info

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98 gf8 Rip