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:
Satellite Radio
XM™ is a satellite radio service that is based in the 48 contiguous United States
and 10 Canadian provinces. XM Satellite Radio has a wide variety of programming
and commercial-free music, coast-t ...
Service data recording
Service data recorders in your vehicle are capable of collecting and storing
diagnostic information about your vehicle. This potentially includes information
about the performance or status of var ...
Engine Compartment Fuse Block
The Engine Compartment Fuse Block is located in the engine compartment, on the
driver side of the vehicle. Lift the cover for access to the fuse/relay block.
If the vehicle is a hybrid, see the hy ...






