thesyguy
Active member
- Joined
- May 31, 2021
- Messages
- 135
- Reaction score
- 88
- Points
- 28
- Location
- In the wind
- Buick Ownership
- 2018 Regal TourX Essence
My ‘18 Essence has been running on 87 octane for 139k miles without a single issue. Plenty of power even when using the Trifecta tune. I have run 93 a few times to see if there was any significant difference, and there were none.
