Originally Posted by JasonSmith
The dealer put in 87 octane about 1/6th of a tank. After I bought it I filled up with 93 octane from shell. Can there 87 hurt anything?
no.. 1/6 87 + 5/6 93 = way above the requirement of 91
In the future don't use the pisswater it will most likely not make an obvious effect instantaniously, but cumilatively there is going to be a lot of potential damage, if you choose to use it..