fuel additives CADILLAC DEVILLE 1998 7.G Owners Manual

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 Identification ................................ 6-57
Misfire. Ease
Off Gas Pedal Message ............. 2-85
Overheated. Stop Engine Message
................ 2-85
Overheating
................................. 5-15
PowerReduced
.............................. 2-85
Running While Parked
.................... 2.32. 4.28
Specifications
................................ 6-66
Starting Your
................................ 2-20
Engine Hot
. A/C Off Message .................... 2-85
Engineoil
.................................... 6-11
Adding
..................................... 6-12
Checking
................................... 6-12
Additives
................................... 6- 14
Used
....................................... 6-15
What Kind
of Oil to Use ....................... 6-13
Whentochange
.............................. 6-14
Stop Engine Message
.......................... 2-85
Engine Speed Limiter
............................ 2-67
EnglisMetric Display
.......................... 2-66
Ethanol
........................................ 6-4
Exhaust. Engine
........................... 2.32. 4.28
Express-Down Window
.......................... 2-34
Exterior Lighting
............................... 2- 10
Exterior Lighting Battery Saver .................... 2-46
Fabric Cleaning
............................... 6-50
Fan Button
................................. 3.2. 3.6
Filling Your Tank
................................ 6-5
Finish Care
.................................... 6-53
Finish Damage
................................. 6-55 First Gear. Automatic Transaxle
................... 2-26
Flashers. Hazard Warning
......................... 5-2
Flash-To-Pass Feature
........................... 2-36
Flat Tire. Changing
............................. 5-24
FloorMats
.................................... 2-57
Fluid Capacities
................................ 6-66
Foreign Countries. Fuel
........................... 6-5
FrenchLanguageManual
11
Front Storage Armrest ........................... 2-54
Front Towing
.............................. 5-9. 5-11
Fuel
.......................................... 6-3
Canada
...................................... 6-5
Data Panel
.................................. 2-78
DoorRelease
................................. 6-6
Filling Your Tank
.............................. 6-5
Gage
....................................... 2-77
In Foreign Countries
........................... 6-5
Level Low Message
........................... 2-85
Fuses and Circuit Breakers
....................... 6-60
Gages
FogLamps
.................................... 2-44
.. ...........................
Front Turn Signal Lamp Bulb Replacement .......... 6-34
Engine Coolant Temperature
.................... 2-73
Fuel
....................................... 2-77
Tachometer
.................................. 2-67
GAWR
....................................... 4-30
Gear Positions. Automatic Transaxle ................ 2-23
GloveBox
.................................... 2-54
Gold Key Courtesy Transportation .................. 7-8