Buick Enclave: 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 advertised as TOP TIER Detergent Gasoline.
Look for the TOP TIER label on the fuel pump to ensure gasoline meets enhanced
detergency standards developed by auto companies. A list of marketers providing
TOP TIER Detergent Gasoline can be found at www.toptiergas.com.

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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, mi
Fuels in Foreign Countries
Never use leaded gasoline or any other fuel not recommended in the previous text
on fuel. Costly repairs caused by use of improper fuel would not be covered by the
vehic
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EXHAUST SYSTEM DESCRIPTION
IMPORTANT: Use of non-OEM parts may cause driveability concerns.
The exhaust system carries exhaust gases, treated by the catalytic converter,
through a resonator, if applicable
and into the exhaust muffler where exhaust noise is lessened.
In order to secure the exhaust
Engine Overheating
The vehicle has several indicators to warn of engine overheating.
There is an engine coolant temperature gauge on the instrument panel cluster.
See Engine Coolant Temperature Gauge .
The vehicle may also display an ENGINE OVERHEATED IDLE ENGINE and ENGINE OVERHEATED
STOP ENGI