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:
Why Safety Belts Work
When riding in a vehicle, you travel as fast as the vehicle does. If the vehicle
stops suddenly, you keep going until something stops you. It could be the windshield,
the instrument panel, or the ...
Changing the connected phone
Up to 10 mobile phones can be paired with the vehicle in the same way. However,
only one can be connected as a phone at any one time. To connect a different paired
phone to the vehicle, follow the ...
Danger, Warnings, and Cautions
Warning messages found on vehicle labels and in this manual describe hazards
and what to do to avoid or reduce them.
Danger indicates a hazard with a high level of risk which will result in serious ...






