Here's a background story of my situation. Recently, I datalogged my car with my VMP tune. Sent the logs to Justin and he saw some knocking activity up top and 29* of timing at some points. He sent me a revision and pulled some timing and the car still runs like a raped ape even with the "reduced" timing. The tune is for 93 octane but as I found out reading the forums you don't always get true 93 octane especially here on the east coast, hence why i could have been seeing some knocking (btw knock was showing -3.5 - - 1.5 between 4.5k - 6.5k rpms.) Im far from a tuning guru so idk what that really means but obviously Justin knows his sh*t and felt the need to pull timing. Basically my question is will adding a half can of torco after my fill up do me any good in terms of achieving a true 93 octane read or maybe even higher? It is worth going through the trouble and money of adding torco after each fill up. Now say i add the torco and now im running 96 octane on a 93 tune. Will that screw things up or what? I don't race often, maybe go to the track twice a month or so but I certainly like to get on it at times. What do you guys think? :shrug: