I tried the same stuff as world tour. I could tell a difference. There are two different bottles. I used the one for the street which is only suppose to raise your octane by 3 to 4 points. I am afraid to use the offroad blend but its suppose to raise the octane 7 to 8 points. What do you guys think. I guess that would be close to 104. Do you think that would hurt my car?
