Nissan 370Z Forum - View Single Post - Tuned on 93 octane, moving to area with 91

Mandingo · 04-12-2019, 06:22 PM

It's been a long *** time since I posted here!

So my Z was tuned on 93 octane by Uprev in Austin a few years ago. I'm moving to a new city for the next 3 years where the highest grade fuel available is 91. I don't have a 91 octane map to switch to.

Will the ECU adapt to the lower octane rating and pull timing until it is running safely? I'd rather not go back to Uprev to get a 91 octane map if I don't have to since they are 5 hours away and $ is tight.

Thanks for your wisdom folks

04-12-2019, 06:22 PM	#1 (permalink)
Mandingo Track Member Join Date: Nov 2010 Location: Dallas Posts: 625 Drives: '10 370z 6spd Rep Power: 3370	Tuned on 93 octane, moving to area with 91 It's been a long *** time since I posted here! So my Z was tuned on 93 octane by Uprev in Austin a few years ago. I'm moving to a new city for the next 3 years where the highest grade fuel available is 91. I don't have a 91 octane map to switch to. Will the ECU adapt to the lower octane rating and pull timing until it is running safely? I'd rather not go back to Uprev to get a 91 octane map if I don't have to since they are 5 hours away and $ is tight. Thanks for your wisdom folks __________________ some mods