Page 426 of 470

Black plate (4,1)Cadillac DTS Owner Manual - 2011
Every Engine Oil Change
.Change engine oil and filter. Reset oil life system.
SeeEngine Oilon page 6‑15andEngine Oil Life
Systemon page 6‑18. An Emission Control
Service.
.Engine coolant level check. See Engine Coolanton page 6‑26.
.Engine cooling system inspection. Visual
inspection of hoses, pipes, fittings, and clamps
and replacement, if needed.
.Windshield washer fluid level check. See
Windshield Washer Fluid on page 6‑32.
.Windshield wiper blade inspection for wear,
cracking, or contamination and windshield and
wiper blade cleaning, if contaminated. See
Windshield and Wiper Blades
on page 6‑99.
Worn or damaged wiper blade replacement. See
Windshield Wiper Blade Replacement
on
page 6‑46.
.Tire inflation pressures check. See Inflation - Tire
Pressure on page 6‑57.
.Tire wear inspection. See Tire Inspection and
Rotation on page 6‑65.
.Rotate tires if necessary. See Tire Inspection and
Rotation on page 6‑65.
.Fluids visual leak check (or every 12 months,
whichever occurs first). A leak in any system must
be repaired and the fluid level checked.
.Engine air cleaner filter inspection. See Engine Air
Cleaner/Filter on page 6‑19.
.Brake system inspection (or every 12 months,
whichever occurs first).
.Steering and suspension inspection. Visual
inspection for damaged, loose, or missing parts or
signs of wear.
.Body hinges and latches, key lock cylinders,
console hinges, and glove box door hinges
lubrication. See Recommended Fluids and
Lubricants
on page 7‑9. More frequent
lubrication may be required when the vehicle is
exposed to a corrosive environment. Applying
silicone grease on weatherstrips with a clean cloth
makes them last longer, seal better, and not stick
or squeak.
.Restraint system component check. See Checking
the Restraint Systems on page 2‑70.
.Fuel system inspection for damage or leaks.
.Exhaust system and nearby heat shields
inspection for loose or damaged components.
7-4
Page 428 of 470

Black plate (6,1)Cadillac DTS Owner Manual - 2011
First Engine Oil Change After Every
80 000 km/50,000 Miles
.Engine air cleaner filter replacement. SeeEngine
Air Cleaner/Filter on page 6‑19.
.Automatic transmission fluid and filter change
(severe service) for vehicles mainly driven in heavy
city traffic in hot weather, in hilly or mountainous
terrain, when frequently towing a trailer, or used for
taxi, police, or delivery service. See Automatic
Transmission Fluid on page 6‑21.
.Evaporative control system inspection. Check all
fuel and vapor lines and hoses for proper hook‐up,
routing, and condition. Check that the purge valve,
if the vehicle has one, works properly. Replace as
needed. An Emission Control Service. The U.S.
Environmental Protection Agency or the California
Air Resources Board has determined that the
failure to perform this maintenance item will not
nullify the emission warranty or limit recall liability
prior to the completion of the vehicle's useful life.
We, however, urge that all recommended
maintenance services be performed at the
indicated intervals and the maintenance be
recorded.
First Engine Oil Change After Every
160 000 km/100,000 Miles
.Automatic transmission fluid and filter change
(normal service). See Automatic Transmission
Fluid on page 6‑21.
.Spark plug replacement and spark plug wires
inspection. An Emission Control Service.
First Engine Oil Change After Every
240 000 km/150,000 Miles
.Engine cooling system drain, flush, and refill
(or every five years, whichever occurs first). See
Engine Coolant
on page 6‑26.An Emission
Control Service.
.Engine drive belts inspection for fraying, excessive
cracks, or obvious damage (or every 10 years,
whichever occurs first). Replace, if needed.
7-6
Page 431 of 470

Black plate (9,1)Cadillac DTS Owner Manual - 2011
Recommended Fluids and
Lubricants
Fluids and lubricants identified below by name, part
number, or specification can be obtained from your
dealer.Usage Fluid/Lubricant
Engine Oil The engine requires engine oil
approved to the dexos™
specification.
Oils meeting this specification can
be identified with the dexos™
certification mark. Look for and use only
an engine oil that displays the dexos™
certification mark of the proper viscosity
grade. See Engine Oil on page 6‑15.
Engine
Coolant 50/50 mixture of clean, drinkable water
and use only DEX-COOL Coolant. See
Engine Coolant on page 6‑26.
Hydraulic
Brake System DOT 3 Hydraulic Brake Fluid
(GM Part No. U.S. 88862806, in
Canada 88862807).
Windshield Washer Optikleen
®Washer Solvent.
Parking Brake Cable Guides Chassis Lubricant (GM Part No.
U.S. 12377985, in Canada 88901242)
or lubricant meeting requirements of
NLGI #2, Category LB or GC-LB.
Usage
Fluid/Lubricant
Power
Steering
System GM Power Steering Fluid
(GM Part No. U.S. 89021184, in
Canada 89021186).
Automatic
Transmission DEXRON
®-VI Automatic Transmission
Fluid.
Key Lock
Cylinders Multi-Purpose Lubricant, Superlube
(GM Part No. U.S. 12346241, in
Canada 10953474).
Hood Latch Assembly,
Secondary
Latch, Pivots,
Spring Anchor,
and
Release Pawl Lubriplate Lubricant Aerosol
(GM Part No. U.S. 12346293, in
Canada 992723) or lubricant meeting
requirements of NLGI #2, Category LB
or GC-LB.
Hood and
Door Hinges Multi-Purpose Lubricant, Superlube
(GM Part No. U.S. 12346241, in
Canada 10953474).
Weatherstrip Conditioning Weatherstrip Lubricant (GM Part No.
U.S. 3634770, in Canada 10953518)
or Dielectric Silicone Grease
(GM Part No. U.S. 12345579, in
Canada 992887).
7-9
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