So you don't have a wideband or anything to monitor AFRs? I suppose if Trent has recommended that then you should be ok. Having to switch maps and buy a wideband etc etc is making converting to e85 just a bit too inconvenient for me atm.
Forgive my ignorance, but if the RON rating stays the same can AFRs still be affected? Would be good to get some concrete info from Caltex re: their mixtures