91 no eth vs. 93 with 10% eth

[87GN 98GTP]

so in my town the 93 with no eth im pretty sure is gone from all gas stations, which is better between the 91 no eth and 93 with 10% eth, if there's any evidence

 

[novaderrik]

one way to find out..

is E85 an option for you? because it kicks ass in these cars..

 

[87GN 98GTP]

it isnt, my big stuff 1 does not have the capability to but version 3 does, im just done spending money for awhile

 

[Red C5]

I would think the 93 is better then any 91 due to octane