Official regional source Ford Mustang 2025
Premium Recommended Minimum 91 RON
Recommended 95 RON
Market Global Market
Engine 5.0L V8
Powertrain Internal combustion
Fuel type Gasoline
Ethanol E10
Fuel tank 60 L Source & Verification Ford Mustang Regional Owner's Manual & Specification
Last verified 2026-10-06 Higher octane can improve performance. Regular unleaded 91 RON or higher accepted.
What happens if I use a lower octane fuel? The minimum is permitted by the source while the higher grade is recommended. We do not assume a performance or economy benefit beyond the source.
Manufacturer verified Ford Mustang 2025 S650
Premium Recommended Minimum 87 AKI
Recommended 93 AKI
Market United States
Engine 5.0L Coyote V8 (Coyote 4G)
Powertrain Internal combustion
Fuel type Gasoline
Ethanol E15
Fuel tank 60.5 L Source & Verification 2024 Ford Mustang Dark Horse Owner's Manual
Last verified 2026-10-06 Premium 93 AKI (approx 98 RON) is recommended for full 500 hp output; 87 AKI regular is tolerated.
What happens if I use a lower octane fuel? The minimum is permitted by the source while the higher grade is recommended. We do not assume a performance or economy benefit beyond the source.