Recommended Fuel; Engine); V6 Engine) - Cadillac CT5 2020 Owner's Manual

Cadillac CT5 Owner Manual (GMNA-Localizing-MidEast-13060107) - 2020 -
CRC - 8/29/19
220 DRIVING AND OPERATING
Recommended Fuel (LSY
2.0L L4 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.
Unleaded petrol rated at 91 RON can
be used, but acceleration and fuel
economy will be reduced, and an
audible knocking noise may be heard.
If this occurs, use petrol rated at
95 RON as soon as possible, otherwise
the engine could be damaged. If heavy
knocking is heard when using
unleaded petrol rated at 95 RON, the
engine needs service.
Recommended Fuel (LGY
3.0L V6 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.