Fuel E85 (85% Ethanol)

If the vehicle has the 3.9L V6 engine (VIN Code M), you can use either unleaded gasoline or ethanol fuel containing up to 85% ethanol (E85). See Fuel. In all other engines, use only the unleaded gasoline described under Gasoline Octane.

Vehicles that have the 3.9L V6 engine (VIN Code M) have a green fuel cap and can use 85% ethanol fuel (E85). See Fuel E85 (85% Ethanol).

    See also:

    Design story
    The Buick Regal's sleek design blends the sweeping silhouette and proportions of a coupe in a progressive package that suggests motion from all angles. Great attention to detail complements that a ...

    Infotainment
    Read the following pages to become familiar with the audio system's features. WARNING! Taking your eyes off the road for extended periods could cause a crash resulting in injury or death t ...

    Tire Sidewall Labeling
    Useful information about a tire is molded into its sidewall. The examples show a typical passenger vehicle tire and a compact spare tire sidewall. Passenger (P-Metric) Tire Example (A) Tire Size: T ...