What grade of gas do you put in your ST?

[bn1574]

I use 93

 

[Nightshade]

We only have 91 and 94 here, 94 is pointless without a tune so used 91 since bought new. Pretty much all my Ford Performance vehicles (including my '24 F-150 Raptor) is running premium, always.

 

[V3nom3nom]

93 although I ran 87 for a year or so when I first bought the car. 2020 with 53k and not tuned yet

 

[SETXExpSTGuy]

As I've mentioned in previous threads, I always use the highest-grade Top Tier fuel available.

 

[msrobi]

93, I ran 87 for about 9 months and then switched back to 93.