Which gas station?
#2
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Have no clue what stations are in your area, but I have been filling my car up with 91 octane at a Conoco station.
#8
Heel & Toe
I use Chevron or Texaco 93 octane due to the Techron additive. Sometimes a little more expensive but I do not have any problems with the fuel gauge that way.
#11
Racer
Used Sunoco 93 octane and Techron every other tank last year and began having fuel gauge issues. Switched to Shell 93 octane and have not added Techron since, with no fuel gauge problems. So that's what works for me. I will add Techron again in the future though.
#13
Le Mans Master
Chevron 94 octane for my Z
#14
Sam's Club
#19
Safety Car
just don't fill up when they are or have just filled the in ground tanks. it stirs up too much crap that usually resides on the bottom of the tank and not within the fuel itself. unless you want to de-tune the car to deal with something lower always use premium grade fuel.