100 octane (racing gas) = $7.89/gal. at the 76 station in North Highlands (PRK).
I do use this sometimes if I don't have any NO2 or octane booster with me.
$3.89 (Premium) in North Highlands AM/PM. This is what I use if I have NO2 or octane booster.
$3.65 "Cheap" stuff. I can't use this at all.
My car doesn't run well at all on pump gas of any grade under 99 octane, so it costs me extra for additives, or NO2 unfortunately. Even with the additives, it's still cheaper than 76's racing gas.