Songfacts®:

• Songwriters use the word "gasoline" to describe girls who want to party and live life to the full. Often it is used in a sexual context, and here the Haim sisters want the gas to rev their engines and make them go faster.
  
  You say you wanna go slower but I wanna go faster
  Faster and faster
  
  Alana Haim recalled to Apple Music: "I think there were parts of that song where we were feeling sexy. I remember I had gone to go get food, and when I came back Danielle had written the bridge. She was like, 'Look what I wrote!' And I was like, 'Oh! Okay!'"
• The Haim sisters wrote the song with their regular collaborator Rostam Batmanglij, formerly of Vampire Weekend. She recalled: "The song was a lot slower originally, and then we put that breakbeat-y drumbeat on it and all of a sudden it turned into a funky sort of thing, and it really brought the song to life."
• Rostam also played the synthesizer, mellotron and acoustic guitar.
• Danielle Haim recalled her drum work on the song: "I was like literally in a cave of blankets, a fort we created with a really old Camco drum set from the '70s, to make sure we got that dry, tight drum sound."
• Alana Haim, Danielle Haim, Rostam and the track's co-producer, Ariel Rechtshaid, all play the electric guitar on the track. Danielle recalled: "That slowed-down ending is due to Ariel. He had this crazy EDM filter he stuck on the guitar, and I was like, 'Yes, that's f---ing perfect."
• The Haim sisters and Taylor Swift are longtime friends, and in 2020 they teamed up for the first time on wax for Swift's Evermore track "No Body, No Crime."
  
  In February 2021, Haim posted a black-and-white photo showing the three sisters standing in a gas station wearing matching wigs. Eagle-eyed Swifties noticed a petrol pump number 13 in the background and linked it with the pop superstar's favorite number.
  
  The band teased fans a potential collaboration with Swift again on February 17, 2021 when they posted a Tik Tok with a snippet of "Gasoline." Listeners noticed there were some additional harmonies added in the chorus that sounded like the "Cardigan" hitmaker.
  
  The following day Haim released the extended edition of Women in Music Pt. III, which included a remix of "Gasoline" featuring additional vocals by Swift. Taylor tweeted, "Cancel the DNA test I'm the 4th Haim sister and this song is the only proof I need."