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210
DRIVING AND OPERATING
Fuel
Top Tier Fuel
GM recommends the use of TOP TIER
Detergent Gasoline to keep the engine
clean, reduce engine deposits, and
maintain optimal vehicle performance.
Look for the TOP TIER Logo or see
www.toptiergas.com for a list of TOP
TIER Detergent Gasoline marketers
and applicable countries.
Recommended Fuel (LFX
3.6L V6 Engine)
Use the recommended fuel for proper
vehicle maintenance.
Use unleaded petrol with a posted
octane rating of 91 RON or higher and
with ethanol up to 10% by volume.
Otherwise an audible knocking noise
may be heard. If heavy knocking is
heard when using gasoline rated at 91
RON or higher, the engine needs
service.
Recommended Fuel
(LF3 3.6L V6 Twin Turbo
Engine)
Use the recommended fuel for proper
vehicle maintenance.
Use unleaded petrol with a posted
octane rating of 95 RON or higher and
with ethanol up to 10% by volume.
If the octane is less than 95 RON, the
engine could be damaged and repairs
would not be covered by the vehicle
warranty. If heavy knocking is heard
when using petrol rated at 95 RON
octane, the engine needs service.
Prohibited Fuels
Caution
Do not use fuels with any of the
following conditions; doing so may
damage the vehicle and void its
warranty:
Fuel with any amount of
methanol, methylal, ferrocene,
and aniline. These fuels can
corrode metal fuel system
parts or damage plastic and
rubber parts.
Fuel containing metals such
as methylcyclopentadienyl
manganese tricarbonyl
(MMT), which can damage
the emissions control system
and spark plugs.
Fuel with a posted octane
rating of less than the
recommended fuel. Using this
fuel will lower fuel economy
and performance, and may
decrease the life of the
emissions catalyst.
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