1998 CADILLAC DEVILLE gas type

Downloaded from www.Manualslib.com manuals search engine When should an air bag inflate?
The driver’s and right front passenger’s frontal air bags
are designed to inflate in moderate to severe frontal or
near-frontal crashes. The frontal air bags are designed to
inflate only if the impact speed
is above the system’s
designed “threshold level.” If your vehicle goes straight
into a wall that doesn’t move or deform, the threshold
level is about 9 to 15 mph (14 to 24 km/h). The
threshold
level can vary, however, with specific vehicle
design,
so that it can be somewhat above or below this
range. If your vehicle strikes something that will move
or deform, such as a parked car, the threshold level will
be higher. The driver’s and right front passenger’s
frontal air bags are not designed to inflate in rollovers,
side impacts, or rear impacts, because inflation would
not help the occupant.
The driver’s and right front passenger’s side impact air
bags are designed to inflate in moderate to severe side
crashes involving a front door.
A side impact air bag
will inflate if the crash severity is above the system’s
designed “threshold level.” The threshold level can
vary
with specific vehicle design. Side impact air bags are not
designed to inflate in frontal or near-frontal impacts,
rollovers
or rear impacts, because inflation would not
help the occupant.
A side impact air bag will only
deploy on the side of the vehicle that is struck. In
any particular crash, no one can say whether
an air
bag should have inflated simply because of the damage
to a vehicle or because of what the repair costs were. For
frontal air bags, inflation is determined by. the angle of
the impact and how quickly the vehicle slo3vs down in
frontal and near-frontal impacts. For side impact air
bags, inflation is determined
by the location of the
impact and how quickly the side of the vehicle deforms.
What makes an air bag inflate?
In an impact of sufficient severity, the air bag sensing
system detects that the vehicle is in a crash. For both
frontal and side impact air bags, the sensing system
triggers a release of gas from the inflator, which’inflates
the air bag. The inflator, air bag and related hardware are all part
of the air bag modules inside the steering
wheel, instrument panel and front doors.
How does an air bag restrain?
In moderate to severe frontal or near frontal collisions,
even belted occupants can contact the steering wheel or
the instrument panel. In moderate to severe side
collisions, even belted occupants can contact the inside of the vehicle. The air bag supplements the protection
provided by safety belts. Air bags distribute the force of the impact more evenly over the occupant’s upper body, stopping the occupant more gradually.
But the frontal air
bags would not help you in many types of collisions,

Downloaded from www.Manualslib.com manuals search engine octane fuel to get rid of pinging. It's the heavy, constant
knock that means you have a problem.
If your vehicle is certified to meet California Emission
Standards (indicated on the underhood emission control
label), it is designed to operate on fuels that meet
California specifications.
If such fuels are not available
in states adopting California emissions standards, your
vehicle will operate satisfactorily on fuels meeting
federal specifications, but emission control system
performance may be affected. The malfunction indicator lamp on your instrument panel may turn
on andor your
vehicle may
fail a smog-check test. If this occurs, return
to your authorized Cadillac dealer for diagnosis to
determine the cause of failure. In the event it is determined that the cause of the condition is the type of
fuels used, repairs may not be covered by your warranty.
Some gasolines that are not reformulated for low
emissions contain an octane-enhancing additive called
methylcyclopentadienyl manganese tricarbonyl (MMT); ask your service station operator whether or not his fuel
contains MMT. General Motors does not recommend the
use .of such gasolines. If fuels containing
MMT are used,
spark plug life may be reduced and your emission
control system performance may be affected. The malfunction indicator lamp on your instrument panel
may turn
on. If this occurs, return to your authorized
Cadillac dealer for service.
To provide cleaner air, all gasolines in the United States are now required to contain additives that will help
prevent deposits from forming in your engine and fuel system, allowing your emission control system to
function properly. Therefore,
you should not have to add
anything to the fuel. In addition, gasolines containing
oxygenates, such as ethers and ethanol, and
reformulated gasolines may be available in your area to
help clean the air. General Motors recommends that you
use these gasolines if they comply with the
specifications described earlier.
NOTICE:
Your vehicle was not designed for fuel that
contains methanol. 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.
6-4

Downloaded from www.Manualslib.com manuals search engine If you get gasoline on yourself and then
something ignites
it, you could be badly burned.
Gasoline can spray out on you
if you open the
fuel filler cap too quickly. This spray can happen
if your tank is nearly
full, and is more likely in
hot weather. Open the fuel filler cap slowly and
wait for any L‘hiss” noise to stop. Then unscrew
the cap all the
way.
Be careful not to spill gasoline. Clean gasoline from
painted surfaces as soon as possible. See “Cleaning the
Outside of
Your Vehicle” in the Index. When you put the
cap back on,
turn it to the right
(clockwise) until you hear a clicking sound. Make
sure you fully install the cap. The diagnostic system
can determine if the fuel cap has been left
off or
improperly installed. This would allow fuel to
evaporate into the atmosphere. See “Malfunction
Indicator Lamp” in the Index.
I 3
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 properly. This may
cause your malfunction indicator lamp to light
and your fuel tank and emissions system may be
damaged. See “Malfunction Indicator Lamp” in
the Index.