Songfacts®:

• "E85" is the opening track on Don Toliver's Octane album. It's a high-energy, metaphor-driven love-and-lifestyle anthem built around the idea of high-octane fuel.
• The title "E85" refers to a fuel known for its blend of 85% ethanol fuel and 15% gasoline. High octane fuel is considered premium gasoline, allowing engines to run harder and more efficiently without knocking. In Toliver's world, fuel rarely stays literal for long. Cars, motion and speed have become recurring symbols across his catalogue, such as the spiraling, emotionally untethered late-night rush of "Lose My Mind," recorded for F1: The Movie. "E85" pushes that motif further, presenting romance itself as a high-performance engine.
• The track draws inspiration from Toliver's real-life relationship with the singer Kali Uchis. While Toliver keeps the narrative impressionistic rather than autobiographical, the sense of a relationship unfolding during travel and transition mirrors the romantic liminality heard in their joint appearances around the Love Sick era, such as "4 Me."
• Toliver co-wrote and co-produced "E85" alongside Travis Scott, who has functioned as both mentor and creative co-pilot throughout Toliver's rise. Scott's influence is detectable in the song's psychedelic trap textures.
• "E85" is anchored by a guitar sample from Malcolm Todd's 2024 single "Chest Pain (I Love)," which is flipped into a fast-moving trap-R&B framework.
• Toliver previewed "E85" during a late-January 2026 appearance on The Tonight Show Starring Jimmy Fallon, performing it as part of a medley with "Long Way To Calabasas."
• As the opening track of Octane, "E85" acts as a mission statement for the album's core themes of speed, excess and sex. The record leans heavily into melodic trap fused with psychedelic ambiance and cinematic sequencing. "E85" establishes that blueprint right away.