My 2023 Chevy Suburban z71, which I recently purchased, has a 5.3-liter engine. According to the owner’s manual, the 5.3-liter engine should run on at least 87 octane. Will there be long-term benefits to utilizing the premium gas? Please let me know.
1 Like
The 2023 Chevy Suburban typically runs on regular unleaded gas (87 octane) for standard engines. However, if equipped with a high-performance engine, premium gas (91 octane) may be recommended. Always check the owner’s manual for specific fuel requirements.
No benefits from using premium if regular is recommended.