Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB - View Single Post - How to run E85 on stock 86 BRZ FRS with OFT tune

tracerit · 02-27-2015, 11:35 PM

This is more of a continuation from my other thread about having 10% LTFT after fueling up on E85. @steve99 mentioned the I probably got near true 85% ethanol in that fuel up, and a fix would be to add some regular gas/petrol. I did and it dropped to 7% ish.

My question is, if I keep adding more gas/petrol, will the LTFT keep dropping or is there a limit to how much gas/petrol I can add before it's unsafe?

02-27-2015, 11:35 PM	#215
tracerit Senior Member Join Date: Aug 2012 Drives: '13 SSM BRZ Limited 6MT Location: Orange County, CA Posts: 1,067 Thanks: 593 Thanked 198 Times in 137 Posts Mentioned: 13 Post(s) Tagged: 0 Thread(s)	This is more of a continuation from my other thread about having 10% LTFT after fueling up on E85. @steve99 mentioned the I probably got near true 85% ethanol in that fuel up, and a fix would be to add some regular gas/petrol. I did and it dropped to 7% ish. My question is, if I keep adding more gas/petrol, will the LTFT keep dropping or is there a limit to how much gas/petrol I can add before it's unsafe?