low octane= high timing advance??

[SolidBoostTSi]

will putting in 87octane change my timing map? because i just realized my father put some in to move my car in and out of the garage. (the car was drained of all fluids besides driveline and engine) My idle has been "hunting" for that steady spot and my logger shows 19-14 degrees of TIMA at 1000rpm idle would 100 octane cure this? all i usually run is 93 mobil gas or could my ISC be shot??? WTF

 

[blue1]

just mix in some higher octane fuel and dont over do it for a couple of days till the system clears itself.