Fuel (Lfx 3.6L V6 Engine); Fuel; V6 Engine); E85 Or Flexfuel - Cadillac XTS 2018 Owner's Manual

pressures are getting low and the tires
need to be inflated to the proper
pressure.
The TPMS does not replace normal
monthly tire maintenance. Maintain
the correct tire pressures.
See Tire Pressure Monitor System
0 272.

Fuel (LFX 3.6L V6 Engine)

Regular Fuel
Use only unleaded gasoline rated
87 octane or higher in your vehicle.
Do not use gasoline with an octane
rating lower as it may result in vehicle
damage and lower fuel economy. See

Fuel 0 220.

Fuel (LF3 3.6L Twin Turbo

V6 Engine)

Premium Required Fuel
Use premium 93 octane unleaded
gasoline in your vehicle. Unleaded
gasoline with a 91 octane rating may
be used, but it will reduce
performance and fuel economy. See
Fuel 0 220.

E85 or FlexFuel

IN BRIEF
No E85 or FlexFuel
Gasoline-ethanol fuel blends greater
than E15 (15% ethanol by volume),
such as E85, cannot be used in this
vehicle.

Engine Oil Life System

The engine oil life system calculates
engine oil life based on vehicle use
and displays the CHANGE ENGINE
OIL SOON message when it is time to
change the engine oil and filter. The
oil life system should be reset to 100%
only following an oil change.
Resetting the Oil Life System
1. Using the DIC buttons, display
REMAINING OIL LIFE on the
DIC. See Driver Information Center
(DIC) 0 135.
2. Press and hold SEL to clear the
CHANGE ENGINE OIL SOON
message and reset the oil life
at 100%.
Be careful not to reset the oil life
display accidentally at any time
other than after the oil is
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