not sure, its a local station owned by a car enthusiast. i know the owner gets the 93 on a special order from ok, but not sure what refinery it comes from. i`ll try to find out. the only other station (1) in the city with high octane is a phillips 66, they have 94 octane and they also have a sticker on the premium grade, no ethanol.
so bottom line, i dont have any other choices, and its 25 miles one way to get it, so i cant compare anything. but both of those run real good, and i get great mileage from both. i dont know why this is such a dead zone for premium. there is plenty of 91 around.
05 V6 auto,