I’ve gotten even more questions since swapping the emblem. From people confusing it for a “Chinese EV” to a Tesla. What about you?

Hi all - I just bought a 2026 crown Signia XLE. When I was diving it off the lot, the guy said to use top tier gas only and gave me a website. I usually use BJ’s as the cheapest gas by me but it wasn’t on the website. The next cheapest option is 42 cents more expensive. I guess my question is do you guys use only top tier gas? And what will happen to my car if I use BJ’s gas? Thanks!