Buick Enclave: Recommended Fuel
Use regular unleaded gasoline with a posted octane rating of 87 or higher. If the octane rating is less than 87, an audible knocking noise, commonly referred to as spark knock, might be heard when driving. If this occurs, use a gasoline rated at 87 octane or higher as soon as possible.
If heavy knocking is heard when using gasoline rated at 87 octane or higher, the engine needs service.
Fuel
Use of the recommended fuel is an important part of the proper maintenance of
this vehicle. To help keep the engine clean and maintain optimum vehicle performance,
we recommend the use of gasoline ...
Gasoline Specifications (U.S. and Canada Only)
At a minimum, gasoline should meet ASTM specification D 4814 in the United States
or CAN/CGSB-3.5 or 3.511 in Canada. Some gasolines contain an octane-enhancing additive
called methylcyclopentadie ...
See also:
Lamp check
A bulb check is initiated for some warning lamps when the ignition is switched
on and lasts for 3 seconds (except for the air bag warning lamp which remains illuminated
until the engine is started ...
Heated and Cooled Cupholders
For vehicles with heated and cooled cupholders, these are located in the front
center console.
Press down on the access door release button to open the cupholder door.
To set to cool mode, press ...
Head Restraints
The vehicle's front seats have adjustable head restraints in the outboard seating
positions.
WARNING
With head restraints that are not installed and adjusted properly, there is a
greater cha ...
