A tlAUTION: 
You can be injured  and  your  vehicle  could  be 
damaged  if  you 
try to do  service  work  on a 
vehicle  without  knowing  enough  about it. 
Be sure  you  have  sufficient  knowledge, 
experience,  the proper  replacement  parts 
and  tools  before  you attempt  any  vehicle 
maintenance  task. 
Be  sure  to use  the  proper  nuts, bolts and 
other  fasteners.  “English”  and “metric” 
fasteners can  be  easily  confused. 
If you  use 
the  wrong  fasteners,  parts can later  break 
or  fall  off.  You  could  be  hurt. 
Adding Equipment  to the Outside of 
Your Vehicle 
Things you might add to the  outside of your vehicle can 
affect  the airflow around  it.  This may cause  wind noise 
and affect windshield washer  performance. Check with 
your retailer  before adding equipment  to the  outside 
of 
your vehicle. 
Fuel 
Use  regular  unleaded gasoline rated at 87  octane or 
higher. At a minimum,  it  should meet specifications 
ASTM 
D48 14 in  the United  States and CGSB 3.5-M93 
in Canada. Improved  gasoline  specifications  have been 
developed by  the American Automobile Manufacturers 
Association  (AAMA)  for  better  vehicle performance 
and  engine  protection.  Gasolines meeting the AAMA 
specification  could  provide  improved driveability and 
emission  control system protection compared 
to 
other gasolines. 
Be  sure  the posted  octane  is at least 
87. If the  octane  is 
less  than  87, you  may  get  a heavy knocking  noise when 
you drive.  If  it’s bad enough,  it can damage your  engine. 
If  you’re using  fuel rated  at 87  octane 
or higher  and you 
hear heavy  knocking, your engine  needs service.  But 
don’t worry  if 
you hear a  little  pinging  noise when 
you’re  accelerating  or  driving up a hill. That’s  normal, 
and 
you don’t  have  to  buy a higher  octane  fuel  to  get  rid 
of  pinging.  It’s the heavy,  constant knock that means 
you have a  problem. 
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ProCarManuals.com 
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 and/or your 
vehicle  may fail a smog-check test.  If this occurs, return 
to  your authorized Oldsmobile retailer  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 
Oldsmobile retailer  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. 
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