you may see a 1 point increase from the 104 octane booster. otherwise its like injector cleaner and doesnt do too much but foul out plugs if mixed wrong. I forget who but there used to be a group that made octane booster that was almost complete touline and actually worked to raise the octane level by a decent amount, the epa would come in and halt production but most of the batches being made were already gone and out of the factory.... i think the group was eagle or something similar

 

wow surprised to see that the sc300 does not require any special tranny fluid like type t4.....

 

91+ for any Lexus product....anything else would be uncivilized!!!! LOL!!!!!!!!