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GizmoDriver

Does the 2021 Ford Mustang need premium gas?

Yes. Premium.

$288extra a year

Pick another car

12,000 miles a year. Gas $3.20. Premium $0.60 more.

Convertibles100%Coupes93%Sedans60%Wagons60%SUVs50%Hatchbacks15%Trucks8%Minivans0%
288 models (2021). One trim per model: the cheapest with a grade.
2021 Ford Mustang: fuel grade by trim
TrimEngineGradeMpgRegular, a yearPremium, a year
EcoBoost Fastback RWD2.3L 4cylPremium24$1,600$1,900
EcoBoost RWD2.3L 4cylPremium25$1,536$1,824
EcoBoost Premium Fastback RWD2.3L 4cylPremium24$1,600$1,900
EcoBoost Premium RWD2.3L 4cylPremium25$1,536$1,824
EcoBoost RWD2.3L 4cylPremium23$1,670$1,983
GT Fastback RWD5.0L 8cylPremium18$2,133$2,533
GT RWD5.0L 8cylPremium19$2,021$2,400
EcoBoost Premium RWD2.3L 4cylPremium23$1,670$1,983
GT Premium Fastback RWD5.0L 8cylPremium18$2,133$2,533
GT Premium RWD5.0L 8cylPremium19$2,021$2,400
GT Premium RWD5.0L 8cylPremium18$2,133$2,533
Mach 1 Fastback RWD5.0L 8cylPremium17$2,259$2,682
Mach 1 RWD5.0L 8cylPremium17$2,259$2,682

Rivals

2021 Ford Mustang and rivals: grade of the cheapest trim
CarCheapest trimGrade
2021 Ford MustangEcoBoost RWDPremium
2021 Ford Bronco4WDRegular
2021 Chevrolet CamaroLS RWDPremium
2021 Dodge ChallengerSXT RWDRegular

What this cannot tell you

Check the fuel door or manual before you fill.

Gas prices and the premium gap change by state.

How values are checked