2016 CADILLAC ATS octane

Cadillac ATS/ATS-V Owner Manual (GMNA-Localizing-MidEast-9369639) -
2016 - crc - 12/9/15
180 Driving and Operating
.Gasolines with a Pump Octane
((R+M)/2) of 99 or greater and
ethanol content below 15%
volume must be used for
competitive driving to protect
against engine damage. Colder
spark plug ratings should also
be used. Consult your dealer.
3.6L Non-Turbo (LGX) Engine Only:
. 3.6L Non-Turbo (LGX) Engine
with Oil Cooler: Confirm the oil
level is at the upper mark that
shows the proper operating
range on the engine oil dipstick.
3.6L Twin Turbo (LF4) Engine Only:
. The twin turbo 3.6L engine (LF4)
requires premium fuel, and
comes standard with a 7 qt
sump, integrated oil cooler, and
other powertrain and powertrain
cooling components in
preparation for track use.
Brake Fluid
. Before racing, replace existing
brake fluid with a qualified racing
brake fluid from a sealed
container. Brake fluid with a dry
boiling point >279 °C (534 °F) is qualified. If racing brake fluid is
used, replace it with GM
approved brake fluid before
driving on public roads. See
Recommended Fluids and
Lubricants
0327.
. Do not use silicone-based fluids.
If racing brake fluid is in the vehicle
and the age of the brake fluid is
over a month old or unknown,
replace the brake fluid between
racing/closed track driving.
Caution
Failure to change the brake fluid
and transfer case fluid after any
performance or race track driving
could result in damage not
covered by the vehicle warranty.
Have the brake fluid and transfer
case fluid changed by your dealer
after any performance or race
track driving. See Recommended
Fluids and Lubricants 0327.
Brake Burnishing
For vehicles equipped with front
Brembo®brake systems:
Base Vehicles Only: Performance/
racing brake pads are required prior
to racing or closed track driving.
Vehicles with option code Y4Q have
performance brake pads.
New brake pads must be burnished
before racing or other competitive
driving.
Caution
Performing the brake burnish
procedure on a base brake
system can result in brake
damage.
Caution
The new vehicle break-in period
should be completed before
performing the brake burnish
procedure, otherwise damage (Continued)

Cadillac ATS/ATS-V Owner Manual (GMNA-Localizing-MidEast-9369639) -
2016 - crc - 12/9/15
234 Driving and Operating
When the System Does Not
Seem to Work Properly
The system performance may be
affected by:
.Close vehicles ahead.
. Sudden lighting changes, such
as when driving through tunnels.
. Banked roads.
. Roads with poor lane markings,
such as two-lane roads.
If the LKA system is not functioning
properly when lane markings are
clearly visible, cleaning the
windshield may help.
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
Use the recommended fuel for
proper vehicle maintenance.
If the vehicle has the 2.0L L4 engine
(LTG), use premium unleaded
gasoline with a posted octane rating
of 95 RON or higher. Regular
unleaded gasoline rated at 91 RON
or higher can be used, but
acceleration and fuel economy will
be reduced, and an audible
knocking noise may be heard. If this
occurs, use a gasoline rated at 95
RON or higher as soon as possible.
Otherwise, the engine could be
damaged. If heavy knocking is
heard when using gasoline rated at
95 RON or higher, the engine needs
service.
If the vehicle has the 2.5L L4 engine
(LCV) or the 3.6L V6 engine (LGX),
use regular unleaded gasoline with
a posted octane rating of 91 RON or
higher, 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. If the vehicle has the 3.6L V6 twin
turbo engine (LF4), use premium
unleaded gasoline with a posted
octane rating of 95 RON or higher.
If the octane is less than 95 RON,
you could damage the engine and
may void the vehicle warranty.
If heavy knocking is heard when
using gasoline rated at 95 RON
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 the
vehicle 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,

Cadillac ATS/ATS-V Owner Manual (GMNA-Localizing-MidEast-9369639) -
2016 - crc - 12/9/15
Driving and Operating 235
then they are acceptable to use.
However, E85 (85% ethanol) and
other fuels containing more than
15% ethanol must be used only in
FlexFuel 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.
Fuel Additives
Gasoline should contain detergent
additives that help prevent engine
and fuel system deposits from
forming. Clean fuel injectors and
intake valves will allow the emission
control system to work properly.
Some gasoline does not contain
sufficient quantities of additives to
keep fuel injectors and intake valves
clean. To make up for this lack of
detergency, consult your dealer for
the GM approved additive
treatment. Add this additive to the
fuel tank at every engine oil change
or every 15 000 km (9,000 mi),
whichever occurs first.
Filling the Tank
{Warning
Fuel vapors and fuel fires burn
violently and can cause injury or
death. . To help avoid injuries to you
and others, read and follow
all the instructions on the
fuel pump island.
. Turn off the engine when
refueling.
. Keep sparks, flames, and
smoking materials away
from fuel.
. Do not leave the fuel pump
unattended.
. Do not use a cell phone
while refueling.
. Do not re-enter the vehicle
while pumping fuel.
. Keep children away from
the fuel pump and never let
children pump fuel.
(Continued)