
Downloaded from www.Manualslib.com manuals search engine SEAT CONTROLS 
ADJUSTMENT OF SEAT POSITION 
Manually Operated Front Seats 
The front seats may be adjusted  forward or rearward by moving the control  lever 
at the front of the seat and exerting  slight body pressure in the direction  desired. 
The  seat 
is locked  in position  when the lever is released. 
After adjusting  a manually operated seat. push forward and rearwardon the scal 
to be sure the seat adjusters have latched. Take the vehicle 10 Y(lur dealer for 
service if you find that either seat adjuster does IIi)! lakh. 
NOTICE: Do not adjust a manually operated driver's seat while the car is moving. The seat could move suddenly and unexpectedly and could cause the driver to lose  control  of thecaf. 
Bucket Seats , The front  seats may be adjusted  forward or rearward by moving  the control  lever at the front of the seat. Move the control lever to release the locking  mechanism; 
then exert slight body pressure to. move  seat to desired  position. Release  lever to lock seat into position. 
After adjusting a manually operated seat. push forward and rearward Oil the scat to be sure the seat adjusters have latched. Take the vehicle to your dealer fo! 
service if you  find that either seat adjuster docs not latch. 
NOTICE: Do not adjust a manually operated driver's seat while the car is moving. The seat could move suddenly and unexpectedly and could cause the driver to lose control of the car. 
MULTI-POSITION RECLINING SEAT The optional reclining  seat back  can be tilted  forward  or rearward of the 
normal position by first  pushing on the seatback. then lifting the control 
lever O!l the outer side of the seat.  Release the lever to lock the seat back 
in  place. 
To return the seatback to an upright position. push  rearward  slightly on 
the seatback, then move the control lever.  Release  the seatba.:k to allow 
it to move  forward.  If you do not first push on the seat back  before  moving 
the lever, the seat back  may jam. To release it. you must push firmly  rear
ward on the seat back before moving the lever, then move the control lever. 
CAUTION: For the optional reclining seat. to reduce the risk of sliding under the belt during an accident, do not recline any more than needed for comfort while the vehicle is moving. The seats and seat belts provide best restraint only when the rider is Sitting up straight and well back in the seat and,  General .Motors urges that people riding in the vahicle be properly restrained at all times. In the event of a 
1-4   

Downloaded from www.Manualslib.com manuals search engine Tir,s 
When lowing  trailers using  a dead-weight  hitch,  inflate  tires  to the "Cold Tire 
Pressure" for ·'Max . Load" show n on  the  Tire Placard on the  left  front  door. 
The  allowable  passenger  and cargo  load  for this car, 
also sh o wn on· the  Tire 
Placard, is reduced  by the trailer  tongue  weight whenever the trailer is attached 
t o  the  car. 
Maintenance 
More  frequen.t  servic e is requi red  when  using your car to pull a trailer.  See Section 
A of the  Maint enance Schedule  folder for Tran saxle Fluid  and Engine Oil chang e 
requirement~ for traitering. 
Now  and then.  check  that all trailer  hitch bolts an d nuts  are tight.  Also see 
"the Maintenance  Schedule rol_def, and  the Index in this manual , for  important  facts 
o n 
belts, coo ling  system  care  and brake  adjustment. 
Break-In Schedule 
See the new car break~in instru ctions  in this manual.  Also,. we recommend  you 
drive  your new car for 
500 mil es (800 kilometer s) before  trailer tOwing. At the 
" end 
of this 500 mile (800 kilome te r)  break-in  period, avoid speeds over 50 mph (80 km/h)  and  full throttl e  start s during  the first  500 miles (800 kilometers)  of 
trailer  towing. 
If a new  engine  or  transaxle  is  ins talled  in you r car,  observe  the 
same 
care. 
CAUTIONS: 
Brakes  -To help avoid  personal  injury due to poor  braking  action: 
• Trailer brakes of adequate  size are required  on  trailer s over 450 kilograms 
(1,000  pounds) loaded  weight. 
• If you use trailer  brakes with  this car,  follow  the installation  and balan ce 
instructi ons 
of the trailer  brake maker. 
• Do nol lap into  the car's  brake  system if the trailer  brake system  uses more than 0.3 cubic  centimeter (0.02 cubic  inch) of nuid from  the ca r's master 
cylinder.  In this case, the car's  brake  fluid capacity will not be enough  to 
operate 
both the car and  trailer  brakes under all kind s, of use. 
• All  brak e fluid  parts  must be able to stand 20 685 kPa (3,000  psi). The brake 
fluid  tap must be made al th e upper rear  master  cylinder port. Copper  tubing is subject  to fatigue  failure and must  no t be used. 
• Before  going down a sleep  or  long grade , reduce speed  and shift  the tran saxle 
into  a lower  gear to control  your car's  speed. 
Try not to hold  the brake  pedal 
down too long or too  often.  This could  cause the brake s to  get  hot  and  not 
work 
as well. 
Hitches -To  help avoid  personal  injury due to  sway  caused by such things as 
c rosswind
s, big  trucks  passing or road roughn ess, or due to  sepa ration of the 
trailer : 
• Keep  the trailer  tongue  load  at 10% of the  loaded  trailer weight  for 
dead-w eight hitches.  Tongue loads can be adjusted  by proper distribution of the  load in the  trailer. This can  be checked by weighing separately the  loaded 
trailer  and then  the tongue, 
• When  you remove  a frailer  hitch, be  sure  to seal any  mountin g h'oles in the 
body . This will help  prevent entry of exhaust  fumes, dirt or water. (See 
"Engine Exhaust  Gas Caution  (Carbon Monoxide) " at the  beginning of "Starting and Operating," Section  2 of this manual.) 
1-12   

Downloaded from www.Manualslib.com manuals search engine Oil/Choke Indicator Light 
This light will c0!TIe on to provide  a "bulb check", w hen the igni tion is turned on, but sh Qu19 go out after the _ engine  is  started. If tight fails to 
come on wit h ignitio~ turned on, it could indicate  a burned  out bulb , a 
defective electric choke hea ter circuit (on L4  and V6 engines), or a blown 
instrument lamp fuse.  Have  system repaired if light  does not come on d min g ch  eck . 
Occa sionally. this  light  may flicker momentarily  while the  engine is running. Should  this  occur, CHECK EN GINE OIL LEVEL  as outlined  in Section 5, 
"Checking  Oil Level." If the light  comes  on continuously,  pull  over toa safe  place and STOP THE ENGINE until  the source of trouble can be loca ted  and  corrected. 
The source of tro uble could be any of the  following: 
• Loss of engine  oil press ure  (cbec k eng ine oil level). 
• Blown choke heater fuse. 
• Loss. of  electric  choke heate r voltage. 
Continuing  to  run  the engine  with an illuminated  oil pressure  light can cause 
serious  engine damage  or unusu ally  high  exhaust  system temperature which  can 
r esult  in serio us  damage  to the 
vehicle. Pull over  to a safe place  and STOP THE 
VEHICLE IMMEDIATELY AND SHUT OFF ENGINE. If  the  light  flashe s 
momentarily , ch
eck  engine  oil leve l as  outlined in Sectio n 5 of thi s manu al 
Choke Warning Indicator Light 
On some vehicles  equipped  with the optiona l oil  pressure  gage, an amber  choke 
warning  indicator  light replaces the red oil pressure indicator  light in the 
instrument  cluste
r. If this  light  comes  on, indicating  loss of electric  choke heater 
volta
ge, have  your  authoriz ed Dea ler  .locate  and correct  th e  tro uble as soon  as 
p ossib l
e. 
Generator Indicator Light The red ligh t GEN will go on  when  the ignition  key is  in  the "run"  _posit ion, but 
before  the engi ne 
is started. After the  engine  s tarts, the  light should 'go out  and 
r e m ain  out . 
If th e light  remains  on when  en gine is running , have  your  Authorized 
D eale r loca te and  correct  the troubl e as  soo n as  possibl
e. 
Engine Temperature .Indicator Light This  indicator  light is provided in th e  instrument  cluster to quickly  warn of an 
overh eated  en gi ne.  With  the igniti on switch  in the START position, the red 
TEMP indicator  (hot light)  will light to let  you  know  that  it is operati ng prope rly. 
When  the engi ne is started ;-th e re d  light will go  out  imm ediate ly. It wilUight up 
a t  n o other  time unleSS for  some  reason  the engine reaches  a dangerously high ope ra tin g temperature . 1f the light comes  on  during  extreme  driving  condition s, 
such  as an  exte nded  idle, see  "E ngine  Cooling 
System" on page 3-3. Glance  at 
th e instrument  cluster frequently  as you  drive  to see  if  this 
ligh t  is  on. 
Brake System Warning Light 
The  regular  braking  system is a  dual  system  designed  so that  one part will provide 
some  braking  action if there is a loss of hydraulic  pressure in the other part of 
the  system.  The system  has a "Brake" warning  light loca ted in the  instrum ent 
pane\. 
• To serve as  a reminder , the "Bra ke" lig ht is designed  to come  on  while  the 
park ing  brake  is  se t and  the ignition  key 
is on. 
• The light is also designed  to  come  on briefly  during engine  starting  so you 
can  chec k that  the bulb  is  okay. 
• Have  the system  repaired if the light  does not come on  during  engine  starting 
o r  when  the parking  brake 
is set. 2-17   

Downloaded from www.Manualslib.com manuals search engine Engine Temperature Gage 
This gage indicat~cCX?lant temperature  which will vary with air temperature  and 
operating condition~, The ignition  must be on for  accurate  readings. Hard driving 
or prolonged  idling In very hot weather will cause the pointer to move  beyond the center of the band; Should  pointer  move to the Red  Zone,  see "Engine Cooling 
System" on page 3-3. 
Oil Pressure Gage 
The oil  pressure  gage indicates  the pn;ssure  at which  oil is being delivered 10 the various  parts of the engine  requiring  lubrication. Pressures registered by the gage 
I11.!lY vary according to outside air temperatures or weight of oil being  used. Oil 
pressure of a cold  engine ~ing operated at  a given  speed  will be somewhat  higher 
than when  the engine is at normal operating temperature at the  same speed . 
. Prolonged high speed operation  on a hot day at  the  given speed will  result in somewhat lower  oil pressure readings. Readings of 30 to 40 psi (205  to 275 kPa) 
mny 
be considered normal  during moderate road speeds of 35 to 40 mph (55 to 
60 km/h) \\lith  the engine  at proper  operating  temperature. Gage readings  which 
are 
consistently  high or Im\l under these conditions may indicate lubrication system  
When the engine is operating,  the voltmeter  indicates the electrical  system voltage. 
During  minimum  electrical load, the pointer  will read to the right of the center. 
As  the  electrical  load is increased, 
or in  stop-and-go  driving, the pointer will rotate 
to  the  left.  A meter  reading  continuously  in 
the left or right  red zone  indicates 
an  electrical  system 
failure .. Cause of the failure  should be determined  and corrected~ 
Light Switch 
The three  position  light switch  controls  the headlights,  taillights, parking lights, 
sidemarker  lights, instrument  lights and dome  lights as shown.  The headlamp 
circuit  is protected  by a circuit  breaker  in 
the light switch. An overload  on the 
breaker  will cause  the lamps  to "flicker" on and  off. If this condition  develops, 
have  your headlamp  wiring checked  immediately. 
The  headlight  beam changer  is located.  in the 
Turn Signal  Lever;  for operation 
see  Section  2 under  heading "Tum Signal  and Headlight  Beam Lever." 
TUIN KNOt TO VAr:t'INSTRUMENT lIGHTS_'UtLy COUNTERClOCKWISE RlR DOME 
0" 
MAltlCfIt LIGHTS , INSTRUMENT LIGHTS 
Headlamp "ON" Warning Buzzer 
The optional headlamp  reminder buzzer provides  an audible  warning  that the 
main  light switch  is in  one 
of the "on" positions,  either parking  lights or 
headlights. 
The  reminder  buzzer 
is actuated only when  the ignition  switch is turned to "OFF," "LOCK" or "ACCESSORY" position. 
2-19   

Downloaded from www.Manualslib.com manuals search engine JACKING 
CAUTION 
To  help  avoid  personal  injury: 
• Follow  all jackin g and  stowag e instructions. 
•  Use jack  only fo r  liftin g this venicle du -rin g wheel c h a ng e. 
• Nev er  ge t ben eath th e vehiCle, start or  run  en g in e  while  vehicle is  supported b y jac k. 
• Always  securely  res tow  spare  tire (o r flat tire ) an d  all jackin g equipment. 
Wheel Nut Torque 
CAUTION: As soon as possible after Installing 8 wheel-and at the intervals shown on the chart-in the Maintenance Schedule foldet-han 8 m.chanic tighten whe&l nuta with II torque wrench to the specifications shown in "SpeCifications ," Section 7 of this manual. Wheel nuts should be tightened alternately and evenly to the correct torque. Never us. oil or grease on studs or nuts. Improperly tightened wheel nuts could eventually allow the wheel to come off while the vehicle is moving, possibty causing loss of control.IAlso see the Caution in "Service and Maintenance," Seetion 5 of this manual regarding the danger of mixing metric and customary fasteners.) 
Stowage of Tire and Jack 
CAUTION:·AlwaYs MOurely restow the spare tire assembty (or flat tire). all jacking equipment. and the cover, using the means provided. When driving the car with the compact spare installed and the reer seat folded down,  stow the wheel cover flat on the rear floor behind the-right front seat. When the rear seat is up (or If It does not fold), stow the wheel cover in the trunk area. This will help keep such things from being thrown about and injuring peopla In the car in an accident. 
Compact Spare 
The compa ct  sp are  is  des ig ned  to save space in yo ur  trunk,  and its lighler weig ht 
m ak es 
it easi er to  in stall if a  flat  tire occurs. The light~r weig ht als o helps  improve fuel  eco no my. 
If you have  a  flat  tire, follow  the jack ing in struction s in this manual  while  keeping 
t h ese  point s in  min d: 
• Chec k inflati on  press ure as  soo n as  practical after in sta llin g the  s pa re  ( use of a  pocke t type: high pressure  inflatio n gage is  adv ised)  and  adjust to 415 
k Pa (60  psi). The  tire pressur e sh o uld  be checked  at least  monthl y  and  kept at 415 kPa  (60 ps i)  while  the tire is  s tored. 
• Co ntinuou s use  at spe eds  over 50 mph (80 km/h) is not  re c omme nded . 
NOTICE: Because this tire is amaUer than the standar d tire, vehicle ground clearance is reduced, Avoid driving over obstacles, and do not take your car U,rough an automatic car wash whila the spare is installed. The car may get caught possibly resulting in property damage. 
• A  trea d life of up  to 3,000 mil es (4 800 kilomet ers)  ca n b e expe cted,  depe nding 
on  roa d condi tions  and  you r 
driv ing  habits . T o  co nserve  tire t read life.  return the spar e to  the sto rage  area  as soo n as  the  sta nd ard  tir e  ca n be repa ir ed -or 
r
epl ac ed . 
• Beca use  the co mpac t spare  was  spec ifica lly designe d for your  car, it s hould 
no t be  used  on  any  other vehicle. 
3-6   

Downloaded from www.Manualslib.com manuals search engine 4. If a ring  forms  after spot cleaning, dean the entire  area IMMEDIATELY. 
5. Follow  specific instructions  on cleaner  labels. 
CLEANING GENERAL SOILAGE OR WATER SPOTS FROM 
FABRIC-TYPE TRIM WITH FOAM-TYPE CLEANER 
GM Multi~Purpose Powdered Cleaner is excellent  for this  type of cleaning,  and 
for  cleaning  panel sections  where 
small cleaning  rings may  be left  from  spot 
cleaning . 
• Vacuum'~rea thoroughly  to remove  loose dirt. 
• AL WAYS  clean a fuJI trim assembly or complete  trim section.  Mask 
surrounding  trim along  stitch 
or well Hnes. 
• Mi x Multi-Purpose Powdered  Cleaner in -strict  accordance  with direction s 
on  label of container.  Mix in proportion  for smaller  quantities. 
• USE  SUDS ONLY ON A CLEAN SPONGE OR SOFT BRISTLE BRUSH. DO NOT SATURATE FABRIC OR RUB HARSHLY WITH BRUSH. 
• 
IMMEDIATELY AFTER CLEANING, WIPE OFF EXCESS CLEANER WITH SLIGHTLY DAMP ABSORBENT TOWEL OR CLOTH. 
IMPORTANT' -IMMEDIATELY AFTER WIPING, FORCE-DRY 
FABRIC WITH AIR HOSE, HEAT DRYER OR HEAT LAMP. (Use 
ca ution  with-beat  dryer 
or lamp  to, help prev~nt damage  to fabri c.) 
• When  trim materials  with a sheen or luster  finish are dry, wipe  fabric  lightly with a soft. dry,c1ean cloth  to restore  its sheen  or luster. 
SPOT CLEANING FABRIC-TYPE TRIM WITH SOLVENT 
TYPE CLEANER 
Before  trying to remove -a  spot  or stain from fabric , detennine  as accurately  as 
y o u  ca n wha t kind  and how  old the spot 
or stain is. Some  spots  or stains can be removed  with water or mild ~p solution  (see "Removal of  Specific Stains "). 
Spots or stains  should  always be removed  as soon  as possi ble. 
Some tyPes of  stains or soilage,  such  as lipstick, . ink s and  gre ase"are  very difficult 
(sometimes  impossible)  to completely reIilove~ When  cleaning  this type  ·of stain or soilage ,' be,: sure not to en)arg e,:the soiled area. . 
GM Fabric  Cleaner (Solvent Type) is exceHent  for spot c1ea,ning grease,  oil, or 
fat  stains . 
• Gently scrape -exceSs stain otT trim material  with a clean . DULL knife or . 
sc raper . 
USE VERY LITTLE CLEANER, light pressure,  and clean  cloths 
(preferably c heesecloth) . Cleaning , shquld be from  outside of stain "FEATHERING" towards  the center;-Keep changing to  a clean  section of 
cloth . 
•  Wben stain is cleaned  from ,fabric,immediately  dry area  with  an air hose. 
heat  dryer, or heat lamp 'to  help  ,prevent  a cleaning  ring. (Use caution with 
heat  dryer  or lamp  to prevent  damage  to fabric) . 
• If a ring forms . immediately  repeat the deaning operation  over  a slightly 
larger  area with  emphasi s on "FEA THERINO" toward s its  center. If ring 
still  remains,  mask ofT surrounding  trim-sections  and clean  entire  affected  area 
with 
GM MUlti-Purpose Powdered  Cleaner (as described  under -"Cleaning 
' General Soilage or Water Spots with -Foam Type Cleaner"). 
4-2   

Downloaded from www.Manualslib.com manuals search engine remOve tlie cap on the coolant ~ecove~y tank : Add to the tank enough of a 50 150 . mixture of w ater and a  g ood  quality eth)dene  glycol antifreez e to bring  the level 
up  to  the  .
proper  mark. Put the cap bac k on the  tank . 
Certain 
conditi ons; "Such as air trapped in the  syste m, may  affe ct the coolant  level 
in 
the radiator. You sho uld  ch ec k  the  co olant ·Ievel ·in the radiator while  you 
change  the engine oil  and  the  e ng ine is col d. Follow  steps I , 8, 9 and 10 und er 
"Coola nt  Rep lacement" for  the correct  way to  rt!move the radiator cap  .an d add 
.  coolant. 
If you  have  to add coola nt  more than  f our tim es a yea r  (ei ther to th e recov ery 
tank 
or to  the  radiat or). see your dealer. for  a. c oo lin g system chec k. 
NOTICE: If the proper quality antifreeze is used, there is no .nee~ to add extra inhibltOf"s or additives which claim to improve the svstem .. They may be harmful to the proper operation. I)f the system. 
Cooling System Service 
The cooling  syste m should be serviced  at the  intervals  specifi ed inSection A of 
the Maintenan ce Sch edule  fold er as  follows: 
I. W ash the radiatqr cap .and filler  neck with clean  water. See step J of "Coolant 
Replacement"  to remove rapiator cap.  . 
2. C hec k the coolant  level in  the radiator and have  it tes ted for  freeze  proteCtion . Add·· ethylene  gly col antifreeze, if needed, to· m aintain freeze protecti on at -37'C(-34'F), 
3~ Have ·the coOlin-g  sys tem and radiat or cap tested fo r a press ure  capacity  of 
105 kPa  (15  psi) . If a repl acement cap is  needed"Hse an AC ca'p,or an 
equivalent · cap,  designed fOl:  coolant  recovery system ·s and spe cified  for your model; 
4. Tighten  all radiator hose clamps and heater hose clamps and inspect  an  hose s. 
R
eplace  the  hose s if  they  are  swollen, "checked" or otherwise  worn . 
NOTICE: Take care when tightenjng·the hose clemps at tMI radiator. Overtightening COUld. bend or collapse .the radiator fittings. 
5.  Clean the front. of the  radiator core and air condit ioning condenser  to  re m ove 
dirt and oth er·objects. Al so  clean  the auxiliary  engine oil andlor transmission -fluid ' cooler  if the vehicle  has them. 
Coolant, Replacement 
At the interval s specified  in Section  A of  the  Maintenance Schedule  folder,  flu sh 
a
nd refill the cool ing system  as follows : 
1. Remove the·radiat or·cap when the engin e is ·cool : 
• 
Turn . t he cap s lowly  to  the  len until ·it reaches a " stop. " Do  not press down while  turning  the cap. 
•  'Wait until any  rem aining press ure  (indicated  by a hissing  sound) is 
reliev ed.  then press down on  the cap an d continue  turning it t(j the left. 
CAUTION:· To help ~lVoid the danger of being ,burned, do not remove the radiator cap while the angine and radiator are still hot s.c.lding flutd and steam can be bk)wn out under pressure if the·cap is taken off.too soon. 
2. Whe n the cap is re m oved, run the eng ine until the upper radiator hose  is hot. 
(This shows that the thermostat  is open and  the  coola nt is flow ing through 
the . system.) 
5·6 
•   

Downloaded from www.Manualslib.com manuals search engine 3. Stop the engine. Open the radiator drain valve to drain the  coolant.  (Drainage 
may  be speeded  by removing the drain  plugs in the  block.) 
4. Close  the drain  valve (install  block drain plugs,  if removed). Add water  until 
the  system  is filled and run the engine  until the upper  radiator  hose is hot again. 
5. Repeat  steps 3 and 4 several  times until the drained  liquid is nearly  colorless. 
6. Drain the system and then  close  the radiator drain  valve tightly.  (Install  block 
drain  plugs, if removed.) 
7. Disconnect  all hoses from the coolant  recovery  tank. Remove  the tank and 
pour out any fluid. Scrub and clean the inside of the tank with  soap and water. 
Flush  it well  with  clean  water, 
then drain  it. Reinstall  the tank and hoses. 
8. Add enough  water and ethylene  glycol antifreeze  (meeting GM Specification 
1899-M)to provide the required cooling, freezing, and corrosion  protection. Use a solution that is at least 50 percent antifreeze, but no more than 70 
percent  antifreeze. Fill the radiator  to the base of the filler neck and fill the 
coolant  recovery 
tank to the "Full Hot" mark. Put the recovery tank cap  back 
on. 
9. Run the  engine,  with the radiator cap removed,  until the upper  radiator  hose 
is  hot. 
10. With  the engine  idling, add coolant to the radiator  until it reaches  the bottom 
of the filler  neck.  Install  the radiator  cap, making sure the  arrows on the cap line  up with  the overflow.  tube. 
It is the owner's responsibility  to: 
• Maintain cooling system freeze protection  at _37°C (_34°F) to ensure 
protection  against corrosion and loss of coolant  from boiling. (A SO/50 
mixture of water and ethylene  glycol antifreeze will provide  freeze protection 
to ~ 37°C ore -34°P.) You should  do this  even if you don't expect  freezing 
temperatures. 
• Add ethylene  glycol base antifreeze that meets GM Specification  1899-M 
when  antifreeze 
hasto be added  because of coolant  loss or for more  protection 
' against  freezing  at temperatures  lower than _37°C (-·J4°P). 
NOTICE: Do not use alcohol or methanol-base antifreeze. or plain water alone. in your vehicle at any time. They will boil at a lower pOint than that at which the hot light indicator (or temperature gage) works. and they do not provide proper protection against corrosion. 
Radiator Pressure Cap 
The radiator  cap, a 105 kPa(15 psi) pressure  type, must be installed  tightly, 
otherwise  coolant may be lost and damage to engine  may result  from overheating. 
Radiator  pressure caps should  be checked  periodically  for proper  operation. 
If 
replacement is required, an AC cap is recommended. 
Thermostat 
The engine  coolant  temperature  is controlled  by a thermostat. It stops  coolant  flow 
through  the radiator  until a preset  temperature is reached.  This thermostat is 
installed  in 
the engine coolant  outlet on the  engine  block. The same thermostat is used in both winter  and summer.  When a replacement is needed, AC~Delco parts 
are  recommended. 
5-7