adding oil CADILLAC STS 2007 1.G Owners Manual

Service........................................................ 362
Accessories and Modications................... 363
California Proposition 65 Warning.............. 363
Doing Your Own Service Work.................. 364
Adding Equipment to the Outside of Your
Vehicle................................................... 365
Fuel............................................................. 365
Gasoline Octane........................................ 365
Gasoline Specications.............................. 366
California Fuel........................................... 366
Additives................................................... 367
Fuels in Foreign Countries........................ 368
Filling the Tank......................................... 368
Filling a Portable Fuel Container............... 371
Checking Things Under the Hood.............. 372
Hood Release........................................... 372
Engine Compartment Overview.................. 373
Engine Oil................................................. 380
Engine Oil Life System.............................. 383
Supercharger Oil....................................... 385
Engine Air Cleaner/Filter............................ 386
Automatic Transmission Fluid.................... 388Engine Coolant.......................................... 389
Coolant Surge Tank Pressure Cap............ 393
Engine Overheating................................... 393
Overheated Engine Protection
Operating Mode..................................... 395
Cooling System......................................... 396
Power Steering Fluid ................................. 403
Windshield Washer Fluid........................... 404
Brakes...................................................... 405
Battery...................................................... 408
Jump Starting............................................ 408
All-Wheel Drive........................................... 414
Rear Axle.................................................... 416
Front Axle................................................... 417
Bulb Replacement....................................... 417
High Intensity Discharge (HID) Lighting..... 418
Halogen Bulbs........................................... 418
Back-Up Lamps......................................... 418
Replacement Bulbs................................... 419
Windshield Replacement............................ 419
Windshield Wiper Blade Replacement....... 419
Section 5 Service and Appearance Care
359

After you have removed the sight shields (if equipped) on the 3.6L V6 engine, here is what you will see:
A. Underhood Fuse Block. SeeUnderhood Fuse
Block on page 488.
B. Windshield Washer Fluid Reservoir. See
“Adding Washer Fluid” underWindshield
Washer Fluid on page 404.
C. Battery. SeeBattery on page 408.
D. Passenger Compartment Air Filter. See
Passenger Compartment Air Filter on page 239.
E. Power Steering Fluid Reservoir. SeePower
Steering Fluid on page 403.
F. Engine Oil Fill Cap. See “When to Add Engine
Oil” underEngine Oil on page 380.G. Engine Oil Dipstick (Out of View). See
“Checking Engine Oil” underEngine Oil on
page 380.
H. Brake Master Cylinder Reservoir. See “Brake
Fluid” underBrakes on page 405.
I. Engine Coolant Surge Tank and Pressure Cap.
SeeCoolant Surge Tank Pressure Cap on
page 393andCooling System on page 396.
J. Engine Air Cleaner/Filter. SeeEngine Air
Cleaner/Filter on page 386.
375

After you have removed the sight shields (if equipped) on the 4.6L V8 engine, here is what you will see:
A. Underhood Fuse Block. SeeUnderhood Fuse
Block on page 488.
B. Battery. SeeBattery on page 408.
C. Passenger Compartment Air Filter. See
Passenger Compartment Air Filter on page 239.
D. Windshield Washer Fluid Reservoir. See
“Adding Washer Fluid” underWindshield
Washer Fluid on page 404.
E. Power Steering Fluid Reservoir. SeePower
Steering Fluid on page 403.
F. Engine Oil Fill Cap. See “When to Add Engine
Oil” underEngine Oil on page 380.G. Engine Oil Dipstick (Out of View). See
“Checking Engine Oil” underEngine Oil on
page 380.
H. Brake Master Cylinder Reservoir. See “Brake
Fluid” underBrakes on page 405.
I. Engine Coolant Surge Tank and Pressure Cap.
SeeCoolant Surge Tank Pressure Cap on
page 393andCooling System on page 396.
J. Engine Air Cleaner/Filter. SeeEngine Air
Cleaner/Filter on page 386.
377

After you have removed the sight shields (if equipped) on the 4.4L V8 STS-V engine, here is what
you will see:
A. Battery. SeeBattery on page 408.
B. Underhood Fuse Block. SeeUnderhood Fuse
Block on page 488.
C. Passenger Compartment Air Filter. See
Passenger Compartment Air Filter on page 239.
D. Windshield Washer Fluid Reservoir. See
“Adding Washer Fluid” underWindshield
Washer Fluid on page 404.
E. Intercooler System Pressure Cap. SeeEngine
Coolant on page 389.
F. Power Steering Fluid Reservoir. SeePower
Steering Fluid on page 403.
G. Engine Oil Fill Cap. See “When to Add Engine
Oil” underEngine Oil on page 380.
H. Engine Oil Dipstick (Out of View). See
“Checking Engine Oil” underEngine Oil on
page 380.I. Brake Master Cylinder Reservoir. See “Brake
Fluid” underBrakes on page 405.
J. Engine Coolant Surge Tank and Pressure Cap.
SeeCoolant Surge Tank Pressure Cap on
page 393andCooling System on page 396.
K. Engine Air Cleaner/Filter. SeeEngine Air
Cleaner/Filter on page 386.
If your vehicle is equipped with front compartment
underhood sight shields, before closing the
hood be sure to reinstall the sight shields. To
reinstall the shields, locate the tabs on the left and
right sides and insert them into the openings in
the tower to tower brace. Then insert the fasteners
into the top of the shield and push the fasteners
back into place.
379

Your vehicle’s engine is lled at the factory with a
Mobil 1®synthetic oil, which meets all
requirements for your vehicle.
Substitute Engine Oil: When adding oil to maintain
engine oil level, oil meeting GM Standard
GM4718M may not be available. You can add
substitute oil designated SAE 5W-30 with
the starburst symbol at all temperatures. Substitute
oil not meeting GM Standard GM4718M should
not be used for an oil change.
Engine Oil Additives
Do not add anything to the oil. The recommended
oils with the starburst symbol that meet GM
standards are all you need for good performance
and engine protection.
Engine Oil Life System
When to Change Engine Oil
Your vehicle has a computer system that lets you
know when to change the engine oil and lter.
This is based on engine revolutions and engine
temperature, and not on mileage. Based on driving
conditions, the mileage at which an oil change
will be indicated can vary considerably. For the oil
life system to work properly, you must reset the
system every time the oil is changed.
Notice:If your vehicle is an STS-V model, the
engine uses a special oil lter. The use of
any other engine oil lter could lead to lter
failure and result in severe engine damage.
Damage caused by use of the wrong engine oil
lter would not be covered by your new
vehicle warranty.
383

What to Use
Use a mixture of one-half clean, drinkable water
and one-half DEX-COOL®coolant which will
not damage aluminum parts. If you use this coolant
mixture, you do not need to add anything else.
{CAUTION:
Adding only plain water to your cooling
system can be dangerous. Plain water, or
some other liquid such as alcohol, can
boil before the proper coolant mixture will.
Your vehicle’s coolant warning system is
set for the proper coolant mixture. With
plain water or the wrong mixture, your
engine could get too hot but you would
not get the overheat warning. Your engine
could catch re and you or others could
be burned. Use a 50/50 mixture of clean,
drinkable water and DEX-COOL
®coolant.Notice:If you use an improper coolant
mixture, your engine could overheat and be
badly damaged. The repair cost would not be
covered by your warranty. Too much water
in the mixture can freeze and crack the engine,
radiator, heater core, and other parts.
If you have to add coolant more than once or
twice a year, have your dealer check your cooling
system.
Notice:If you use extra inhibitors and/or
additives in your vehicle’s cooling system, you
could damage your vehicle. Use only the
proper mixture of the engine coolant listed in
this manual for the cooling system. See
Recommended Fluids and Lubricants on
page 516for more information.
390

How to Add Coolant to the Coolant
Surge Tank
If you have not found a problem yet, check to see
if coolant is visible in the surge tank. If coolant
is visible but the coolant level is not at the FULL
COLD/FROID line on the side of the coolant
surge tank, add a 50/50 mixture of clean, drinkable
water and DEX-COOL
®coolant at the coolant
surge tank, but be sure the cooling system,
including the coolant surge tank pressure cap, is
cool before you do it. SeeEngine Coolant on
page 389for more information.
{CAUTION:
Steam and scalding liquids from a hot
cooling system can blow out and burn
you badly. They are under pressure, and if
you turn the coolant surge tank pressure
cap — even a little — they can come out at
high speed. Never turn the cap when the
cooling system, including the coolant
CAUTION: (Continued)
CAUTION: (Continued)
surge tank pressure cap, is hot. Wait for
the cooling system and coolant surge
tank pressure cap to cool if you ever have
to turn the pressure cap.
{CAUTION:
Adding only plain water to your cooling
system can be dangerous. Plain water, or
some other liquid such as alcohol, can
boil before the proper coolant mixture will.
Your vehicle’s coolant warning system is
set for the proper coolant mixture. With
plain water or the wrong mixture, your
engine could get too hot but you would
not get the overheat warning. Your engine
could catch re and you or others could
be burned. Use a 50/50 mixture of clean,
drinkable water and DEX-COOL
®coolant.
398

{CAUTION:
Turning the Intercooler System pressure
cap when the engine and intercooler are
hot can allow steam and scalding liquids
to blow out and burn you badly. Never
turn the Intercooler System pressure cap,
even a little, when the engine and
intercooler are hot.
{CAUTION:
Adding only plain water to your cooling
system can be dangerous. Plain water, or
some other liquid such as alcohol, can
boil before the proper coolant mixture will.
Your vehicle’s coolant warning system is
set for the proper coolant mixture. With
plain water or the wrong mixture, your
CAUTION: (Continued)
CAUTION: (Continued)
engine could get too hot but you would
not get the overheat warning. Your engine
could catch re and you or others could
be burned. Use a 50/50 mixture of clean,
drinkable water and DEX-COOL
®coolant.
Notice:In cold weather, water can freeze and
crack the engine, radiator, heater core and
other parts. Use the recommended coolant and
the proper coolant mixture.
{CAUTION:
You can be burned if you spill coolant on
hot engine parts. Coolant contains
ethylene glycol and it will burn if the
engine parts are hot enough. Do not spill
coolant on a hot engine.
401