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California  Fuel Additives 
If 
your vehicle is certified  to meet  California Emission 
Standards  (see  the underhood  emission control label), 
it  is  designed  to operate  on fuels that  meet California 
specifications.  If this fuel  is 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  may 
turn  on (see  Malfunction Indicator 
Lamp on page 3-32) 
and your vehicle  may fail a  smog-check  test.  If  this 
occurs, return to  your authorized 
GM dealer  for 
diagnosis.  If it is determined that the condition is  caused 
by  the type  of fuel  used, repairs  may not be  covered 
by your  warranty.  To 
provide cleaner air,  all gasolines in  the United  States 
are  now  required 
to contain additives  that  will  help 
prevent engine  and  fuel  system  deposits from  forming, 
allowing your emission control  system to work 
properly.  You should  not have  to add  anything to  your 
fuel.  Gasolines containing oxygenates,  such as 
ethers  and ethanol,  and reformulated  gasolines  may  be 
available  in your area  to contribute  to clean  air. 
General Motors  recommends that you  use  these 
gasolines, particularly 
if they  comply  with the 
specifications described  earlier. 
Notice: Your  vehicle  was  not  designed  for  fuel  that 
contains  methanol.  Don’t  use  fuel containing 
methanol.  It  can  corrode  metal  parts in  your  fuel 
system  and  also  damage  the  plastic  and  rubber 
parts. That damage  wouldn’t be covered  under  your 
warranty. 
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When  you put the  fuel  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 on 
page 
3-32. 
Notice: If you  need a new  fuel  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  may  damage  your  fuel  tank  and  emissions 
system.  See “Malfunction  Indicator  Lamp”  in 
the  Index. 
Filling  a  Portable  Fuel  Container 
~ .-ver  fil. - portable  fL--  cc..-ainer  while it is in 
your  vehicle.  Static  electricity  discharge  from 
the  container  can  ignite  the  gasoline  vapor.  You  can  be  badly  burned  and  your  vehicle 
damaged  if  this  occurs. 
To help  avoid  injury  to 
you  and  others: 
Dispense  gasoline  only  into  approved 
containers. 
Do  not  fill  a  container  while it is inside  a 
vehicle, 
in a  vehicle’s  trunk,  pickup  bed  or 
on  any  surface  other  than  the  ground. 
Bring  the fill nozzle in contact  with  the 
inside  of  the  fill  opening  before  operating 
the  nozzle.  Contact  should  be  maintained 
until  the  filling  is  complete. 
Don’t  smoke  while  pumping  gasoline. 
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Bad  wear 
0 Bad  handling 
Bad fuel  economy 
If your  tires  have  too  much air (overinflation), 
you  can  get  the  following: 
Unusual  wear 
Bad  handling 
Rough  ride 
Needless  damage  from  road hazards 
When to Check 
Check  your tires once  a  month  or  more. 
Don’t  forget  your  compact  spare tire.  It should  be 
at 
60 psi (420 kPa). 
How to Check 
Use  a  good  quality  pocket-type gage to check  tire 
pressure.  You  can’t  tell 
if your tires are properly inflated 
simply  by looking  at them. Radial tires  may look 
properly inflated  even  when  they’re  underinflated. 
Be  sure  to put  the  valve  caps  back  on  the valve stems. 
They  help prevent  leaks  by keeping out dirt and 
moisture. 
Tire  Inspection  and  Rotation 
Tires should  be rotated every 7,500 miles (1 2 500 km). 
Any  time  you notice unusual  wear, rotate your tires 
as  soon  as possible and  check  wheel alignment. 
Also 
check for damaged  tires or  wheels.  See  When It Is Time 
for  New  Tires on page 
5-70 and  Wheel  Replacement 
on page 5-73 for more  information. 
The  purpose  of regular rotation  is to achieve more 
uniform  wear for all tires  on the  vehicle. The first  rotation 
is  the  most  important.  See  “Part  A:  Scheduled 
Maintenance  Services,’’  in Section 
6, for  scheduled 
rotation intervals. 
1 
When  rotating your tires,  always  use the correct  rotation 
pattern  shown here. 
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