Page 246 of 388

Downloaded from www.Manualslib.com manuals search engine 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. 
If your  vehicle  is certified to  meet California  Emission 
Standards  (indicated  on  the  underhood  tune-up  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  Chevrolet 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 
Chevrolet  dealer for service.   
     
        
        Page 249 of 388

Downloaded from www.Manualslib.com manuals search engine A CAUTION: 
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  “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  Chevrolet”  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. 
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. 
6-7 
, .. .. .   
     
        
        Page 290 of 388

Downloaded from www.Manualslib.com manuals search engine NOTICE: (Continued) 
Use  another  type  of traction  device only 
if its 
manufacturer  recommends  it  for  use on  your 
vehicle  and  tire  size combination  and  road 
conditions.  Follow that  manufacturer’s 
instructions. 
To help  avoid  damage  to  your 
vehicle,  drive slowly,  readjust  or  remove the 
device 
if it’s  contacting  your  vehicle, and  don’t 
spin  your  wheels. 
If you do  find  traction  devices that will fit,  install 
them  on  the  front  tires. 
If you have  other  tires,  use tire  chains  only where 
legal  and only when  you must.  Use only 
SAE 
Class “S” type  chains  that  are  the  proper  size for 
your  tires.  Install  them  on  the  front  tires  and 
tighten  them  as  tightly  as  possible with the  ends 
securely  fastened.  Drive  slowly and follow  the 
chain  manufacturer’s  instructions. 
If you can 
hear  the  chains  contacting  your  vehicle, stop 
and  retighten  them. 
If the  contact  continues, 
slow  down  until 
it stops.  Driving  too  fast  or 
spinning  the  wheels with chains  on will damage 
your  vehicle. 
Appearance  Care 
Remember,  cleaning  products  can be  hazardous.  Some 
are  toxic.  Others  can  burst  into flame if  you strike a 
match 
or get  them  on a  hot  part of the  vehicle.  Some are 
dangerous  if 
you breathe  their  fumes in a  closed  space. 
When  you 
use anything  from  a  container  to clean  your 
Chevrolet,  be  sure to follow  the  manufacturer’s 
warnings  and  instructions.  And  always  open  your  doors 
or  windows  when  you’re  cleaning  the  inside. 
Never use  these  to clean  your  vehicle: 
Gasoline 
Benzene 
Naphtha 
Carbon  Tetrachloride 
Acetone 
Paint  Thinner 
Turpentine 
0 Lacquer  Thinner 
Nail  Polish  Remover 
They  can  all  be hazardous 
-- some  more  than 
others 
-- and  they  can  all  damage  your  vehicle, too.