My understanding is P100 is 91 "boosted" to 100 via ethanol. Considering the first measurement of e85 on Eflex meter was 80% i question their consistency and accuracy. Perhaps the P100 (equivalent E10) was only octane equivalent 95?

Regardless ... Tuned to 98 shall be fed 98. Peace of mind.

When a major brings out E85 in WA ... ?

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[COLOR=Black]Liberty GT Spec B tuned 240 HP & 372 Nm at the hubs.[/COLOR] "Instead of banning high performance cars - ban low performance drivers"