87 Octane only on trail

[pooner]

What's a guy to do if there is only 87 octane on the trail? Carry some octane boost or just not drive it hard until you get 91? That's not going to be easy!!

 

[ritchie]

according to Yamaha the ecu compensates...no need to worry.

• 
  The Yamaha Mitsubishi Electronic Control Unit (ECU) uses a series of 9 sensors to gather running condition data and computes using its predetermined memory 'map'. It then adjusts ignition timing, fuel delivery, manifold air-pressure and turbo boost pressure to produce maximum performance - reliably.

 

[DMCTurbo]

What's a guy to do if there is only 87 octane on the trail? Carry some octane boost or just not drive it hard until you get 91? That's not going to be easy!!

I've come across only 87 once this year and just put half a bottle of octane boost in and had no issues.

 

[ROCKERDAN]

87 should not hurt anything if rode on trail, its when you are holding it WOT under full boost that it wont like it, and then ECU should pull back as safety factor.

It would be interesting to watch this real time on a AFR and Boost gauge, to see if boost is pulled and afrs are richened.