
Downloaded from www.Manualslib.com manuals search engine I NOTICE: 
Your engine  is designed  to work  with 
the  electronics  in  your  vehicle.  If  you 
add  electrical  parts  or  accessories, 
you  could  change  the  way the fuel 
injection  system  operates.  Before 
adding  electrical  equipment,  check 
with  your  dealer.  If  you  don’t, your 
engine  might  not  perform  properly. 
If  you  ever  have  to  have  your vehicle 
towed,  see  the  part 
of this  manual 
that  tells  how  to  do it without 
damaging  your  vehicle.  See “Towing 
Your Vehicle”  in  the  Index. 
Engine  Power  Switch (ZR-I) 
The  LT5  engine  in  your  ZR-1  has  two  sets 
of  intake  runners  and  fuel  injectors. The 
primary  set can  be  run  alone  for normal 
engine  power,  or  both  sets  can  be used 
for 
full engine  power. 
Full  power  gives  you  extra  power for 
highway  touring  and  off-road  sports use 
and  reserve  power  for passing.  With 
normal  power,  you’ll  notice  less engine 
and  exhaust  noise.  To 
change  the  power  setting, put  your 
engine  power key into  the switch.  Turn 
the  key  to the  setting  you  want  and  let 
go 
The key  will  return  to the center position. 
Your  ZR-1  is able to  run  at full power 
under  the  following conditions: 
The engine  coolant  and  oil 
temperatures are greater  than 
68 OF 
(20°C) but  less  than 302°F (150°C). 
e System  voltage is greater than  ten 
e The “SERVICE  ENGINE SOON’ 
volts. 
light  is  not  on. 
You can  switch  the  setting at engine 
speeds  up  to 
4,000 rpm.  When  you 
select  the 
“FULL” setting, a light  near 
[he  switch  will  come  on. It should go 
>ut  when  you  change back to the 
“NORMAL”  setting.  When you turn  the 
ignition 
off, the  setting  will go back to 
normal  power. 
Off-Road  Track Use 
See  your  Warranty  Book  before using 
your  Corvette for  off-road track use. 
NOTICE: 
If  you  use  your  Corvette  for off-road 
track  use,  your  engine may use more 
oil  than  it would  with  normal use. 
Low  oil levels  can damage the 
engine. Be sure to check  the oil level 
often during  off-road track use. 
You 
may  need  to add  additional  oil. See 
“Engine Oil”  in  the Index. 
49 ...   

Downloaded from www.Manualslib.com manuals search engine Substitute  Oil (LT1 Only): When adding 
oil  to  maintain  engine oil  level,  if an oil 
meeting  GM Standard  GM4718M  is not 
available,  you  can  use  oil designated 
either 
SAE 5W-30  API  Service SH or  SG 
at  all  temperatures,  or 
SAE 1OW-30  API 
Service 
SH or SG at  temperatures  above 
0°F (-18°C). This  oil  should  not  be  used 
for  an  oil  change. 
Substitute  Oil (LT5 Only): When  adding 
oil  to maintain  engine  oil  level,  if  an  oil 
meeting 
GM Standard  GM4718M  is  not 
available,  you  can  use  oil designated  SAE 
1OW-30  API  Service  SH  or 
SG at all 
temperatures.  This  oil  should  not  be used 
for  an  oil  change. 
Engine  Oil  Additives 
Don’t  add  anything  to your  oil.  Your 
Chevrolet  dealer  is ready  to  advise if  you 
think  something  should  be  added. 
When  to  Change  Engine  Oil 
See  if any  one of these  is  true  for you: 
Most  trips are less  than 4 miles 
It’s  below  freezing  outside  and most 
trips  are less  than 
10 miles (16 km). 
(6 km). 
The engine is  at  low  speed  most  of 
the  time  (as 
in stop-and-go  traffic). 
Most  trips are through dusty  places. 
If any  one of these is true for  your 
vehicle,  you  need  to change  your oil and 
filter  every  3,000  miles 
(5 000 km) or 
3  months 
- whichever  comes first. 
(See  “Engine  Oil  Life Monitor”  in  the 
Index.) 
If  none  of  them  is true, change the  oil 
every  7,500  miles 
( 12 500 km) or  12 
months 
- whichever  comes first.  Change 
the  filter at the first oil change  and  at 
every  other  oil change after  that. (See 
“Engine  Oil  Life Monitor”  in the  Index.) 
Engine  Coolant  Heater  (Engine  Block 
Heater) 
An engine  coolant  heater can  be  a  big 
help  if  you  have to park  outside  in  very 
cold  weather, 
0 “F (- 18  “C)  or colder.  If 
your  vehicle  has  this feature, see “Engine 
Coolant  Heater”  in  the Index. 
What to Do with  Used  Oil 
Did  you  know  that  used  engine oil 
contains  certain  elements that  may  be 
unhealthy  for your  skin and  could  even 
cause  cancer?  Don’t  let used  oil stay  on your 
skin for  very long. Clean  your  skin 
and  nails  with  soap and  water,  or a  good 
hand  cleaner.  Wash or throw  away 
clothing or rags containing  used engine 
oil.  (See the  manufacturer’s  warnings 
about the  use  and disposal  of oil 
products.) 
Used  oil can  be a  real  threat  to the 
environment.  If  you change  your own oil, 
be sure  to drain all free-flowing oil from 
the filter before disposal.  Don’t ever 
dispose  of oil  by  putting  it in  the  trash, 
pouring  it on  the  ground,  into sewers, or 
into streams or  bodies of  water.  Instead, 
recycle 
it by  taking  it to a place that 
collects  used oil. If  you  have a  problem 
properly  disposing  of your  used  oil, ask 
your  dealer,  a  service station or 
a local 
recycling  center for help. L 1 
181 ...   

Downloaded from www.Manualslib.com manuals search engine Coolant Adding 
..................... 189 
Engine 
..................... 188 
Heater.  Engine 
................ 50 
How  to Add  to the Coolant 
Recovery  Tank 
............. 153 
How  to  Add  to  the  Coolant 
High  Fill  Reservoir 
...... 154.  157 
Temperature  Gage.  Engine 
....... 89 
Cooling 
....................... 107 
Cooling  System 
............ 151.  152 
Corvette  Action  Center 
.......... 253 
Courtesy  Lights 
................. 68 
Courtesy  Transportation 
.......... 255 
Cruise  Control 
.................. 64 
Passing  Another  Vehicle 
While  Using 
................ 66 
To  Erase  Speed  Memory 
........ 66 
To Get  Out  of ................. 66 
To  Reduce  Speed 
While  Using 
................ 65 
To Resume  a Set  Speed ......... 65 
ToSet 
....................... 64 
Using  on  Hills 
................ 66 
Curves.  Driving  on 
.............. 127 
Customer  Assistance 
To Increase  Speed  While  Using ... 65 
for  the  Hearing  or  Speech  Impaired  (TDD) 
............ 252 
Customer  Assistance  Information 
. . 251 
Customer  Satisfaction  Procedure 
... 252  Daytime 
Running  Lights 
........ 68 
Deep  Standing  Water. 
Driving  through 
............... 50 
Defects.  Safety  Reporting  to General  Motors 
.... 254 
Reporting  to the  Canadian 
Government 
............... 254 
Reporting  to the  United  States 
Government 
............... 254 
Defensive  Driving 
.............. 122 
Defogger.  Rear Window 
......... 11 1 
Defogging  and  Defrosting  Windows 
................... 107 
Delayed  Accessory  Bus 
........... 47 
Delco-Base@ AM/FM  Stereo 
with  Cassette  Tape  and 
Compact  Disc  Player 
........ 115 
Dimensions.  Vehicle 
............ 227 
Dimmer  (Brightness Control) 
...... 67 
Disc  Break  Wear  Indicators 
....... 194 
Doing 
Your Own  Service 
Work 
....................... 172 
Door  Ajar  Light 
.................... 94 
Locks 
....................... 37 
Locks.  Power 
................. 38 
Storage  Compartment 
.......... 73 
Downshifting 
................... 55 
Driver  Information  Center ......... 80 
Driver Position  (Safety Belts) ...... 19 Driving 
AtNight 
.................... 131 
City 
........................ 134 
Defensive 
................... 122 
Drunken 
.................... 122 
Freeway 
.................... 134 
In  the  Rain 
.................. 132 
On  Curves 
.................. 127 
On  Snow  or  Ice 
.............. 138 
Through  Deep  Standing  Water 
.... 50 
Winter ...................... 137 
Drunken  Driving 
............... 122 
ECM  Engine  Fuse  Block 
........ 222 
Electrical  Equipment.  Add-on 
..... 218 
Emergencies.  Braking  in 
......... 127 
Emergencies.  Steering  in 
......... 128 
Engine 
Cleaning 
.................... 215 
Coolant 
..................... 188 
Coolant  (Block) Heater 
......... 50 
Coolant  Temperature  Gauge ..... 89 
Exhaust 
...................... 59 
Identification 
................ 218 
Oil 
........................ 178 
Oil  Life  Monitor 
............... 94 
Oil  Pressure  Gauge 
............. 91 
Oil  Temperature  Gauge 
......... 92 
Overheating 
................. 150 
Power  Switch 
................. 49 
263 . .