Originally Posted by stretchedk7
I always thought since all fuel basically comes from the same place they are all the same however after some open source tuning and hours and hours of logging and interpreting, shell 93 is by far the best as far as 93 goes here in fl. I get knock in the 4-5 count range with any other fuel but as soon as shell makes its way into the tank bam knock is virtually gone. Just my .02
Fuel starts the same, but the finished product is not the same.