fuel CADILLAC DEVILLE 1994 7.G Owner's Manual

Downloaded from www.Manualslib.com manuals search engine of the vehicle and do some fairly vigorous exercises every half hour or so
until help comes.
TO'WING A ERiULER
NOTICE:
Pulling a trailer improperly can damage your vehicle and result
in costly repairs not covered by your warranty.
To pull a trailer
correctly, follow the advice in this section.
Your Cadillac is a passenger vehicle. It was not designed for many of the
demands that trailer towing can add. Trailer towing can change the way
your vehicle performs on the road. It brings new forces into play and can
add plenty
of strain and stress to your vehicle.
Load pulling components such as the engine, transaxle, wheel assemblies,
and tires
are forced to work harder against the drag of the added weight.
The engine is required to operate at relatively higher speeds and under
greater loads, generating extra heat. Trailer towing adds considerably to
wind resistance increasing the pulling requirements.
All of that means changes in:
Handling
0 Durability
Fuel Economy
You may decide not to pull
a trailer but meet your load carrying needs in
some other way.
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SERVICE AND APPEARANCE CARE
Here you will find information about the care of your Cadillac. This
section begins with service and fuel information, and then it shows how to
check important fluid and lubricant levels. There is also technical
information about your vehicle, and a section devoted to its appearance
care.
Your Cadillac dealer knows your vehicle best and wants you to be happy
with it. We hope you’ll
go to your dealer for all your service needs. You’ll
get genuine
GM parts and GM-trained and supported service people.
We hope
you’ll want to keep your GM vehicle all GM. Genuine GM parts
have one
of these marks:
Doing Your Own Service Work
If you want to do some of your own service work, you’ll want to get the
proper Cadillac Service Manual. It tells you much more about how to
service your Cadillac than this manual can.
To order the proper service
manual,
see “Service Publications” in the Index.
Your vehicle has an air bag system. Before attempting to do your own
service
work, see “Servicing Your Air Bag-Equipped Cadillac” in the
Index.
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Downloaded from www.Manualslib.com manuals search engine You should keep a record with all parts receipts and list the mileage and
the date
of any service work you perform. See “Maintenance Record” in
the Index.
n
I NOTICE:
If you try to do your own service work without knowing enough
about it, your vehicle could be damaged.
FUEL
Use premium unleaded gasoline rated at 91 octane or higher. It should
meet specifications
ASTM D4814 in the U.S. and CGSB 3.5-92 in
Canada. These fuels should have the proper additives,
so you should not -
have to add anything to the fuel.
In the U.S. and Canada, it’s easy to be sure you get the right kind
of
gasoline (unleaded). You’ll see “UNLEADED” right on the pump. And
only unleaded nozzles will fit into your vehicle’s filler neck.
Be sure the posted octane is at least
91. If the octane is less than 91, you
may get
a heavy knocking noise when you drive. (In an emergency, you
may be able to use lower octane
-- as low as 87 -- if heavy knocking does
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Downloaded from www.Manualslib.com manuals search engine not occur.) If you’re using 91 or higher octane unleaded gas and you still
get heavy knocking, your engine needs service.
What about gasoline with blending materials that contain oxygen
(oxygenates), such as MTBE or alcohol?
MTBE is “methyl tertiary-butyl ether.” Fuel that is no more than
15%
MTBE is fine for your Cadillac.
Ethanol is ethyl or grain alcohol. Properly-blended fuel that is no more
than
10% ethanol is fine for your Cadillac.
I Methanol is methyl or wood alcohol.
NOTICE:
Fuel that is more than 5% methanol is bad for your vehicle.
Don’t use it. It can corrode metal parts in your fuel system and
also damage plastic and rubber parts. That damage wouldn’t be
covered under your warranty. And even at
5% or less, there must
be “cosolvents” and corrosion preventers in this fuel to help
avoid these problems.
Gasolines for Cleaner Air
Your use of gasoline with deposit control additives will help prevent
deposits from forming in your engine and
fuel system. That helps keep
your engine in tune and your emission control system working properly.
It’s good for your vehicle, and you’ll be doing your part for cleaner air.
Many gasolines are now blended with oxygenates. General Motors
recommends that you use gasolines with these blending materials, such as
MTBE and ethanol. By doing
so, you can help clean the air, especially in
those parts of the country that have high carbon monoxide levels.
In addition, some gasoline suppliers are now producing reformulated
gasolines. These gasolines are specially designed to reduce vehicle
emissions. General Motors reco.mmends that you use reformulated
gasoline. By doing
so, you can help clean the air, especially in those parts
of the country that have high ozone levels.
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Downloaded from www.Manualslib.com manuals search engine - You should asK your service station operators if their gasolines contain
deposit control additives and oxygenates, and
if they have been
reformulated to reduce vehicle emissions.
- FUELS IN FOREIGN COUNTMES
If you plan on driving in another country outside the U.S. or Canada,
.+- unleaded fuel may be hard to find. Do not use leaded gasoline. If you use
even one tankful, your emission controls won’t work well or at all. With
continuous use, spark plugs can get fouled, the exhaust system can
-- corrode, and your engine oil can deteriorate quickly. Your vehicle’s
oxygen sensor will be damaged. All
of that means costly repairs that
wouldn’t be covered by your warranty.
~ To check on fuel availability, ask an auto club, or contact a major oil
company that does business in the country where you’ll be driving.
You can also write us at the following address for advice. Just tell us
__ where you’re going and give your Vehicle Identification Number (VIN).
General Motors Overseas Dist:ribution Corporation,
North American Export Sales (NAES)
1908 Colonel Sam Drive
Oshawa, Ontario
L1H 8P7
---. FUEL ECONOMY
Your fuel economy (miles per gallon or liters per 100 kilometers) can vary
have been driven through a standard test and their actual fuel economy
was recorded. These readings were adjusted and printed on the fuel
economy window sticker which was attached to your new Cadillac when it
-- was delivered and in the Gas Mileage Guide which is available from your
dealership.
~. depending on how your Cadillac is driven. Several vehicles like yours
The fuel economy estimates are based on results
of tests required by the
U. S. Environmental Protection Agency (EPA). These tests are used to
certify that vehicles meet the Federal emissions and fuel economy
standards. Cadillac tests prototypes of new vehicles and submits the
- results to the EPA. The EPA then confirms the accuracy of the figures
provided by Cadillac. The vehicles are driven by a professional driver
under controlled laboratory conditions, on an instrument similar
to a
w.
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Downloaded from www.Manualslib.com manuals search engine treadmill. These procedures ensure that each vehicle is tested under
identical conditions.
There are
two different fuel economy estimates for each vehicle, one for
city driving and one for highway driving.
To develop these two estimates,
separate tests are used to represent typical everyday city and rural
driving.
The test used to determine the city fuel economy estimate simulates a 7.5
mile (12 km), stop and go trip with an average speed of 20 mph (32
km/h). The trip takes 23 minutes and has 18 stops. About one fifth of the
time is spent idling,
as in waiting at traffic lights or in rush hour traffic.
Two kinds of engine starts are used: a cold start, which is similar to
starting a car
in the morning after it has been parked all night and a hot
start, which is similar to restarting a vehicle after it has been warmed up,
driven and stopped for a short time.
The test used to determine the highway fuel economy estimate represents
a mixture of "non-city" driving. Segments corresponding to different
kinds
of rural roads and interstate highways are included. The test
simulates
a 10 mile (17 km) trip with an average speed of 48 mph (77
km/h). The test is run from a hot start and has little idling time and no
stops.
To assure that the fuel economy numbers are most useful for consumers,
the EPA adjusts these laboratory test results to account for the difference
between controlled laboratory conditions and actual driving on the road.
The laboratory fuel economy results are adjusted downward to arrive at
the estimates on
the fuel economy window sticker and the Gas Mileage
Guide. The city estimate is lowered by 10 percent and the highway
estimate is lowered
by 22 percent from the laboratory test results.
Experience has proven that these adjustment.s make the mileage
estimates correspond more closely to the actual fuel economy realized by
the average driver.
Even though these figures are adjusted, they still represent what the
average driver will get. Your fuel economy may be significantly higher or
lower, depending on how, when, and where your vehicle is driven. Here
are some things you can
do to increase fuel economy;
0 Combine errands into one trip.
0 Turn the engine off rather than letting it idle for more than a minute.

Downloaded from www.Manualslib.com manuals search engine 0 Have your Cadillac serviced as described in the maintenance booklet.
0 Keep tires inflated to recommended pressures.
0 Anticipate traffic stops.
-
Here are some things that will lower fuel economy:
Quick acceleration.
0 Traveling at higher speeds. Traveling at 65 mph instead of 55 mph
Carrying unnecessary weight in the vehicle.
Rewing the engine. This is not ne.cessary for your vehicle.
.-
lowers fuel economy by 15 percent.
__
Operating your vehicle with the suspension out of alignment or with
the wheels and tires out of balance.
Use of electrical accessories which require high amperage when they
Even things beyond your control such as weather conditions affect your
fuel economy. Driving up steep hills,
in rain or snow, and into a strong
wind will lower fuel economy. In the lower left corner of the fuel
economy window sticker from your vehicle is
the range of city and
highway
fuel economy you can expect to get from your Cadillac. If you
are doing everything to raise your fuel economy,
but are still not within
about your fuel economy as you can find, (miles driven, gallon’s of fuel
used, etc.) and provide it to your dealership for their review and
are
not needed.
-
-
-- this range, your vehicle may need service. Collect as much information
-- assistance.

Downloaded from www.Manualslib.com manuals search engine To take off the cap, turn it slowly to the left (counterclockwise).
When
you put the cap back on, turn it to the right until you hear a
clicking noise,. .I
NOTICE:
If you need a new cap, be sure to get the right type. Your dealer
can get one for you.
If you get the wrong type, it may not fit and
your fuel tank and emissims system might be damaged.
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Downloaded from www.Manualslib.com manuals search engine - ENGINE OIL
A CHECK OIL LEVEL message will appear when the engine oil is
approximately
a quart low. If the message is displayed, check the dipstick
level and add oil as needed. -
It’s a good idea to check your engine oil every time you get fuel. In order
to get an accurate reading, the
oil must be warm and the vehicle must be
on level ground. ~-~
Turn off the engine
and give the oil
a few
minutes to drain back
into the
oil pan. If you
don’t, the oil dipstick
might not show the
actual level.
259

Downloaded from www.Manualslib.com manuals search engine You should also use the proper viscosity oil for your vehicle, as shown in
the following chart:
RECOMMENDED SAE VISCOSITY GRADE ENGINE OILS
FOR BEST FUEL ECONOMY AND COLD STARTING, SELECT THE LOWEST
SAE VISCOSITY GRADE
OIL FOR THE EXPECTED TEMPERATURE RANGE.
HOT
WEATHER
r n .'F
+loo --.
+80
+60 --.
+40 -. -
+20 -. -
0 --'
/
7
'C
t 38
t 27
f 16
t4
-7
-18
LOOK FOR
ONE OF THESE
LABELS
SAE 1ow-3~ PREFERRED above 0°F
COLD
WEATHER
DO NOT USE SAE 1OW-40, SAE 2OW-50 OR ANY OTHER GRADE OIL NOT RECOMMENDED
As shown in the chart, SAE 1OW-30 is best for your vehicle. However,
you can use
SAE 5W-30 if it's going to be colder than 60 OF (16 C)
before your next oil change. When it's very cold, you should use SAE
5W-30. These numbers on an oil container show its viscosity, or thickness.
Do not use other viscosity oils, such as SAE 1OW-40 or SAE 2OW-50.
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