
Downloaded from www.Manualslib.com manuals search engine Features  and  Controls 
It  takes  more (or less) fuel to fill  up 
than  the  gauge  reads.  For  example,  the 
gauge  reads  half  full, but it took  more 
(or less)  than  half of the  tank’s 
capacity  to fill  it. 
The  gauge  moves  a little  when  you 
turn,  stop  or  speed  up. 
You  can  use  the  Trip  Monitor  to  display 
more  detailed  fuel  information. Each time 
you  press  “FUEL  INFO,”  one 
of the 
following  will  appear  next  to  the fuel 
gauge. 
INST The  fuel  economy  calculated 
for your  current  driving  conditions. 
AVERAGE: The fuel economy 
calculated  for the  current  tank of fuel, 
or  since  you last  reset  the  display. 
RANGE: The distance  you  can drive 
before  refueling. 
Blank: The  fuel  gauge  is  displayed 
alone. 
You should  reset  the  fuel  information 
display  every  time  you  refuel.  Press 
“RESET  FUEL”  on  the  Trip  Monitor.  :loser  to  the  floor. 
It may 
take  longer  to 
stop.  If  the  light  is  still on,  have  the 
vehicle  towed  for service.  (See  “Towing 
Your  Vehicle”  in  the  Index.) 
... 84 
Brake  System  Warning  Light 
Your Corvette’s  hydraulic  brake  system 
is  divided  into  two  parts.  If one  part  isn’t 
working,  the  other  part  can  still work  and 
stop  you.  For  good  braking,  though,  you 
need  both  parts  working  well. 
This  light  should  come on  as  you  start  thc 
vehicle.  If it  doesn’t  come on  then,  have 
it  fixed 
so it  will  be  ready  to  warn  you  if 
there’s  a problem.  If this  warning  light 
stays  on, there  could  be 
a brake  problem. 
Have  your  brake  system  inspected  right 
away. 
If  the  light  comes on  while  you  are 
driving,  pull 
off the  road  and  stop 
carefully.  You  may notice  that  the  pedal 
is  harder  to  push.  Or,  the  pedal  may go   

Downloaded from www.Manualslib.com manuals search engine - ..f’.’.*.‘.*.I. 
To Check  Engine  Oil 
Pull  out  the  dipstick  and  clean it with  a 
paper  towel  or  cloth,  then  push  it back 
in 
all  the  way.  Remove  it  again,  keeping the 
tip  lower. 
5.7L  LTl (Code E 
When  to  Add  Oil: 
If the  oil  is  at or below  the “ADD’ mark, 
you’ll  need  to add  some oil.  But  you  musl 
use  the right  kind.  This section  explains 
what  kind 
of oil  to  use.  For  crankcase 
capacity,  see “Capacities  and 
Specifications”  in  the Index. 
NOTICE: 
Don’t  add  too  much  oil. If your 
engine  has 
so much  oil  that  the  oil 
level  gets above  the  upper  mark  that 
shows  the  proper  operating range, 
your  engine  could  be  damaged. 
5.7L  LT5 (Code J) 
Just fill it enough  to  put  the level 
somewhere 
in the  proper  operating range. 
Push  the  dipstick  all  the  way  back 
in 
when  you’re  through. 
What  Kind of Oil  to  Use 
Look for two  things: 
GM4718M 
The  Corvette engine requires a  special 
oil  meeting  GM Standard  GM47 18M. 
Oils  meeting  this  Standard  may  be 
identified  as  synthetic. However,  not 
all  SYNTHETIC  oils  will  meet  this 
GM  Standard.  You should  look 
for 
and use only  an oil  that  meets  GM 
Standard  GM47  18M. 
179 ...   

Downloaded from www.Manualslib.com manuals search engine Service  and  Appearance  Care 
6. Rock the bulb  back  and  forth while 
pulling  up to remove  it. 
7. Reverse the steps  with  a  new  bulb. 
. . ,202 
Windshield  Wiper 
Blades 
It's  a  good  idea  to rotate the wiper  blade 
assembly 
180" every  six  months.  This 
changes the  wear  pattern  and  makes  the 
wiper  blade insert  last  longer. 
To rotate 01 
replace the  wipers: 
1. 
2. 
3. 
Pull the  wiper  arm away  from  the 
windshield. 
You should  be  able to see  part  of a 
spring  near  where  the  blade  connects 
to  the  arm.  Press  down  on the  spring 
with  a  screwdriver  and  pull  the wiper 
blade 
off. 
Rotate the  blade  and  push  it back  ontc 
the  arm. 
TIRE-LOADING  INFORMATION 
FRT.  CRT. 
RR. TOTAL  LBS  KG 3  3 2 MAX.  LOADING @ GVWR  SAME  AS  VEHICLE a 1199  544 
CAPACITY  WEIGHT  BBW  OCCUPANTS  VEHICLE  CAP. 
wi. 
TIRE  SIZE 
60/410 
3 9 
INFORMATION 0 F 
 / 
I Loading Your Vehicle 
Two labels on your  vehicle  show  how 
nuch  weight  it may  properly  carry.  The 
rire-Loading  Information  label  found  on 
he  driver's  door  tells  you the  proper  size, 
'peed  rating  and  recommended  inflation 
n-essures  for the  tires  on  your  vehicle. 
t  also  gives  you  important  information 
ibout  the  number 
of people  that  can  be  in 
Tour  vehicle  and  the  total  weight  that 
TOU can  carry.  This  weight  is  called  the 
iehicle  Cabacity  Weight  and  includes  the 
weight  of  all  occupants,  cargo,  and  all 
lonfactory-installed  options.   

Downloaded from www.Manualslib.com manuals search engine MFD BY  GENERAL MOTORS CORP. 
01/91 5713LB 2503LB DATE GVWR 
GAWRFRT  GAWRRR 
The  other  label  is the  Certification  label, 
found  on the  rear  edge of  the  driver’s 
door.  It  tells  you  the  gross  weight 
capacity  of  your vehicle,  called  the 
GVWR  (Gross  Vehicle  Weight  Rating). 
The  GVWR  includes  the  weight  of the 
vehicle,  all  occupants, 
fuel and  cargo. 
Never  exceed 
the GVWR  for  your 
vehicle,  or  the  Gross  Axle  Weight  Rating 
(GAWR)  for  either  the  front  or  rear axle. 
And,  if  you  do  have  a heavy  load, you 
should  spread  it  out.  Don’t  carry  more 
than 
100 pounds (45 kg) in your  rear  area. 
I NOTICE: 
I 
Your warranty  does not cover  parts or 
components  that  fail because  of over- 
loading. 
~~ 
If  you  put  things  inside  your  vehicle - 
like suitcases, tools,  packages,  or 
anything  else 
- they  will  go as fast  as  the 
vehicle  goes.  If  you have to stop or 
turn 
quickly,  or  if there  is a crash, they’ll keep 
going. 
203. . .   

Downloaded from www.Manualslib.com manuals search engine Service  and  Appearance  Care 
on a specified  government  test course. For 
example,  a  tire  graded  150 would  wear 
one  and  a  half 
(1 1/2)  times  as well  on the 
government course as  a tire graded 
100. 
The  relative  performance  of tires depends 
upon  the actual  conditions  of their  use, 
however,  and  may depart significantly 
from the  norm due to variations  in driving 
habits,  service  practices  and  differences in 
road characteristics and climate. 
Traction - A, B, C 
The  traction  grades,  from  highest to 
iowest  are: 
A, B, and C. They represent 
the  tire’s  ability  to stop on  wet pavement 
as  measured  under  controlled  conditions 
on  specified  government  test  surfaces of 
asphalt  and  concrete. 
A tire marked C 
may  have  poor  traction  performance. 
Warning:  The  traction  grade assigned 
to this tire is  based  on braking 
(straight-ahead)  traction tests and does 
not  include  cornering  (turning) traction. 
Temperature - A, B, C 
The temperature  grades  are A (the 
highest), 
B, and C, representing  the  tire’s 
resistance  to  the  generation  of heat and  its 
ability to dissipate  heat  when tested under 
controlled  conditions  on a specified 
. . .208 
indoor  laboratory  test  wheel.  Sustained 
high  temperature  can  cause the  material 
of  the  tire to degenerate and  reduce tire 
life,  and excessive temperature can  lead  to 
sudden  tire failure. The grade C 
corresponds  to a  level 
of performance 
which  all  passenger  car tires must  meet 
under  the  Federal Motor  Vehicle  Safety 
Standard 
No. 109.  Grades B and A 
represent  higher  levels of performance  on 
the  laboratory  test  wheel  than  the 
minimum  required  by  law. 
Warning:  The temperature grade for 
this  tire is established for  a tire  that  is 
properly  inflated and  not  overloaded. 
Excessive  speed, underinflation,  or 
excessive loading, either separately  or 
in  combination,  can  cause heat buiidup 
and  possible  tire failure. 
These grades  are molded  on the  sidewalls 
of  passenger  car tires. 
While  the  tires available as  standard or 
optional  equipment  on General  Motors 
vehicles  may  vary  with  respect  to these 
grades, all such tires  meet  General  Motors 
performance  standards and have  been 
approved  for use on General Motors 
vehicles.  All  passenger  type 
(P Metric) 
tires  must  conform  to Federal  safety 
requirements  in  addition to these grades. 
Wheel  Alignment  and  Tire  Balance 
The wheels  on  your  vehicle  were  aligned 
and  balanced  carefully  at  the  factory  to 
give  you  the  longest  tire  life  and  best 
overall  performance. 
In  most  cases,  you  will  not  need  to  have 
your  wheels  aligned  again.  However,  if 
you  notice  unusual  tire wear  or  your 
vehicle  pulling  one way  or 
the other,  the 
alignment  may  need to be  reset.  If  you 
notice  your  vehicle  vibrating  when 
driving  on  a  smooth  road,  your  wheels  may  need  to  be  rebalanced. 
Wheel-  Replacement - . - 
Replace  any  wheel  that  is  bent,  cracked  or 
badly  rusted.  If  wheel  nuts  keep  coming 
loose,  the  wheel,  wheel  bolts,  and  wheel 
nuts  should  be  replaced.  If  the  wheel 
leaks  air,  replace  it (except  some 
aluminum  wheels,  which  can  sometimes 
be  repaired).  See your  Chevrolet  dealer 
if  any  of  these  conditions  exist. 
Your  dealer  will  know  the  kind  of  wheel 
you  need. 
Each  new  wheel  should  have  the  same 
load  carrying  capacity,  diameter,  width, 
offset,  and  be  mounted 
the same  way  as 
the  one  it  replaces.