Top Tier Fuel; Recommended Fuel; Prohibited Fuels - GMC Canyon 2023 Owner's Manual

GMC Canyon Owner Manual (GMNA-Localizing-MidEast-16512225) - 2023 -
CRC - 3/20/23
212 Driving and Operating
The LKA system does not need service. Clean
the outside of the windshield behind the
rearview mirror.
LKA assistance and/or LDW alerts may occur
due to tar marks, shadows, cracks in the
road, temporary or construction lane
markings, or other road imperfections. This
is normal system operation; the vehicle does
not need service. Turn LKA off if these
conditions continue.
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

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.

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.