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:
Rear Vision Camera (RVC)
If available, the RVC displays a view of the area behind the vehicle on the navigation
screen when the vehicle is shifted into R (Reverse). Once shifted out of R (Reverse),
the navigation screen wil ...
Premium-grade unleaded gasoline
To ensure the longevity and full
performance of the engine, only premiumgrade
unleaded gasoline must be used.
If no premium-grade unleaded gasoline is
available and regular unleaded gasoline
mu ...
What to Use
WARNING
Adding only plain water or some other liquid to the cooling system can be dangerous.
Plain water and other liquids, can boil before the proper coolant mixture will.
The coolant warning ...
