mobile-menu-icon
GM Authority

2.0l lsy octane choices

Viewing 1 reply thread
  • Author
    Posts
    • #863013
      Bimmerland
      Participant

      My 2025 buick envision avenir has the 2.0l lsy engine. The manual recommends 87 octane. Can I go with 89 or 93 for any improvement?

    • #863129
      Parts Man1
      Participant

      Auto Club did a very good story on this subject and found no benefit to higher octane fuel.

Viewing 1 reply thread
  • You must be logged in to reply to this topic.

Subscribe to GM Authority

For around-the-clock GM news coverage

We'll send you one email per day with the latest GM news. It's totally free.