Urgently need tips and advice for my Pontiac Firebird V6 1991

Hello Together, First a few words about me and my US car, I drive a Pontiac Firebird V6 with 3.3 l capacity, built in 1991. I own this vehicle now a scarce year and I am so happy with my fire bird. Now to my question: I would like to go with my Firebird on vacation to Spain and wanted to know about you (so also the question here in the Camaro Forum, because in principle identical ) what should I have checked before starting my trip or renew or what do you have to pay attention to ? What about the reliability on long distances with the Firebird or does it cause problems or could it become critical ? Would be happy for any advice and experience of any kind ! As said so far am very satisfied but have not really driven much with my Firebird yet … Thank you already in advance, hope for much meaningful and helpful posts ! 🙂 Greetings your FirebirdV6er