91 + octanium every fill

[s550_GT]

IS our gas really that bad? What company you guys get your gas from. Maybe I just don’t notice it due to the mild Ford performance tune and not datalogging. For reference I use Costco gas, they basically bring a tanker every other day.

i usually get shell, chevron, costco gas. TOP tier quality but it not that good.

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[armykyle1 [HACKED ACCOUNT]

You can also run torco. I guess we have decent fuel down here. I've never see any positive knock on e10 93. I'm now running a "torco tune" and I'm not seeing any knock issues. You can buy torco on Amazon. It's about 125 a box. One bottle to a tank should net you 96-97 with that crappy cali fuel.