Black plate (60,1)Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-7707485) -
2015 - CRC - 10/31/14
9-60 Driving and Operating
specification D4814 with a posted
octane rating of 87 or higher. Do not
use gasoline with an octane rating
below 87, as it may cause engine
damage and will lower fuel
economy.
If the vehicle has the 3.6L V6 LF3
twin turbo engine (VIN Code 8), use
premium unleaded gasoline meeting
ASTM specification D4814 with a
posted octane rating of 91 or higher.
If the octane is less than 91,
damage to the engine may occur
and may void the vehicle warranty.
If heavy knocking is heard when
using gasoline rated at 91 octane or
higher, the engine needs service.
Use of Seasonal Fuels
Use summer and winter fuels in the
appropriate season. The fuels
industry automatically modifies the
fuel for the appropriate season.
If fuel is left in the vehicle tank for
long periods of time, driving or
starting could be affected. Drive thevehicle until the fuel is at one-half
tank or less, then refuel with the
current seasonal fuel.
Prohibited Fuels
Gasolines containing oxygenates,
such as ethers and ethanol, as well
as reformulated gasolines are
available in some cities. If these
gasolines comply with the
previously described specification,
then they are acceptable to use.
However, E85 (85% ethanol) and
other fuels containing more than
15% ethanol must be used only in
flex fuel vehicles.
{Caution
Do not use fuel containing
methanol. It can corrode metal
parts in the fuel system and also
damage plastic and rubber parts.
That damage would not be
covered under the vehicle
warranty.
Some gasolines, mainly high octane
racing gasolines, can contain an
octane-enhancing additive called
methylcyclopentadienyl manganese
tricarbonyl (MMT). Do not use
gasolines and/or fuel additives with
MMT as they can reduce spark plug
life and affect emission control
system performance. The
malfunction indicator lamp may turn
on. If this occurs, see your dealer
for service.
California Fuel
Requirements
If the vehicle is certified to meet
California Emissions Standards, it is
designed to operate on fuels that
meet California specifications. See
the underhood emission control
label. If this fuel is not available in
states adopting California Emissions
Standards, the vehicle will operate
satisfactorily on fuels meeting
federal specifications, but emission
control system performance might
be affected. The malfunction
indicator lamp could turn on and the
Black plate (62,1)Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-7707485) -
2015 - CRC - 10/31/14
9-62 Driving and Operating
Warning (Continued)
.Fuel can spray out if the
refueling nozzle is inserted
too quickly. This spray can
happen if the tank is nearly
full, and is more likely in hot
weather. Insert the refueling
nozzle slowly and wait for
any hiss noise to stop prior to
beginning to flow fuel
If equipped, the fuel door is locked
when the vehicle doors are locked.
Press
Kon the RKE transmitter to
unlock. To open the fuel door, push
and release the rearward center
edge of the door.
The vehicle has a capless refueling
system and does not have a fuel
cap. The filling nozzle must be fully
inserted and latched prior to starting
fuel flow.
Be careful not to spill fuel. Do not
top off or overfill the tank and wait a
few seconds before removing the
nozzle. After initial shutoff, do not
partially remove the nozzle to add
more fuel as this will result in fuel
spillage. Clean fuel from painted
surfaces as soon as possible. See
Exterior Care on page 10-81.
{Warning
If a fire starts while you are
refueling, do not remove the
nozzle. Shut off the flow of fuel by
(Continued)
Warning (Continued)
shutting off the pump or by
notifying the station attendant.
Leave the area immediately.
Filling the Tank with a Portable
Gas Can
If the vehicle runs out of fuel and
must be filled from a portable
gas can:
1. Locate the capless funnel adapter from within the vehicle.
2. Insert and latch the funnel into the capless fuel system.
