1999 CHEVROLET CORVETTE transmission oil

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The information may be displayed in English or metric
units and appears as an image focused out toward the
front of your vehicle. The HUD consists of the
following information:

Speedometer

Turn Signal Indicators

High
-Beam Indicator Symbol

Tachometer

Temperature, Oil and Fuel Gages

Shift Light (Performance SHIFT Light)
This light is used for performance driving to indicate
that the vehicle's best performance level has been
reached to shift the transmission into the next higher
gear. The SHIFT light will display at an engine
speed of about 5,750 rpm, just prior to reaching the
engine fuel cut
-off mode. To better understand the
vehicle's power curves, see ªCapacities and
Specificationsº in the Index.

Check Gages IconThere are five HUD selections that you can choose to
view in the HUD display. By pressing and holding the
PAGE button, you can scroll through these pages in the
following order:

Speed Only

Speed and Gage

Speed, Tachometer and Gage

Speed and Tachometer

Tachometer Only
When you have chosen the desired HUD display, release
the PAGE button.
Gages can be scrolled through by tapping the PAGE
button (only when a gage is displayed). The gages
shown are:

Oil Pressure

Coolant Temperature

Fuel Level
The selections that you choose will remain in the HUD
display until they are changed.

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Driver Information Center (DIC)
The Driver Information Center (DIC) will display
information about how your vehicle is functioning, as well
as warning messages if a system problem is detected. The
DIC display area is located in the instrument cluster below
the speedometer and tachometer, directly above the
steering column.
The following buttons are on the DIC control panel which
is located to the right of the instrument panel cluster.
1 FUEL: Press this button to display fuel information
such as fuel economy and range.
2 GAGES: Use this button to display gage information
like oil pressure and temperature, coolant temperature,
transmission fluid temperature, battery voltage and
front/rear tire pressures.
3 TRIP: Use this button to display your total and trip
miles, the elapsed time function, your average speed and
the engine oil life.
4 OPTIONS: This button allows you to choose personal
options that are available on your vehicle, depending on
the options your vehicle is equipped with, such as
security, door locks, easy entry seats and language.
5 E/M: Use this button to change the display between
English and metric units.
RESET: This button, used along with the other buttons,
will reset system functions and turn off or acknowledge
messages on the Driver Information Center (DIC).
At the top of the DIC control buttons is a light sensor.
Be sure not to block the sensor or your lighting
functions may be disrupted.

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Press the GAGE button again to display the oil
temperature, such as:

OIL TEMP 234 F or

OIL TEMP 112 C
Press the GAGE button again to display the coolant
temperature, such as:

COOLANT TEMP 123 F or

COOLANT TEMP 51 C
Press the GAGE button again to display the transmission
fluid temperature (automatic transmission only),
such as:

TRANS FLUID 123 F or

TRANS FLUID 51 C
Press the GAGE button again to display the battery
voltage, such as:

BATTERY VOLTS 13.5
Press the GAGE button again to display the tire pressure
for the front tires (left and right), such as:

FRONT L34 R33 PSI or

FRONT L234 R228 kPaPress the GAGE button again to display the tire pressure
for the rear tires (left and right), such as:

REAR L34 R33 PSI or

REAR L234 R228 kPa
Note that tire pressure is not available until the vehicle
has reached a speed of 15 mph (24 km/h) or more.
3 TRIP
The TRIP button allows you to scroll through the
functions listed below when you press it.

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Other Messages
Here are more messages that you can receive on your
Driver Information Center (DIC). To acknowledge a
message and read another message that may have come
on at the same time, press the RESET button.

BRAKE BEFORE SHIFT (Automatic
Transmissions Only)

CHANGE OIL NOW (See ªEngine Oil Lifeº in
the Index.)

CHANGE OIL SOON (See ªEngine Oil Lifeº in
the Index.)

CRUISE DISENGAGED (See ªCruise Controlº in
the Index.)

CRUISE SET __ MPH (__ km/h) (See ªCruise
Controlº in the Index.)

DOOR AJAR
ENGINE PROTECTION REDUCE ENGINE RPM

TRUNK AJAR (Convertible/Hardtop)

HATCH AJAR (Coupe)

HIGH VOLTAGE

LOW BRAKE FLUID (See ªBrake Fluidº in
the Index.)

LOW FUEL (See ªFuel Gageº in the Index.)

LOW VOLTAGE

LOW WASHER FLUID

RESERVE FUEL

UPSHIFT NOW

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Section 6 Service and Appearance Care
Here you will find information about the care of your vehicle. This section begins with service and fuel information,
and then it shows how to check important fluid and lubricant levels. There is also technical information about your
vehicle, and a part devoted to its appearance care.
6
-2 Service
6
-3 Fuel
6
-6 Filling Your Tank
6
-9 Checking Things Under the Hood
6
-12 Engine Oil
6
-16 Engine Air Cleaner/Filter
6
-18 Automatic Transmission Fluid
6
-19 Manual Transmission Fluid
6
-20 Hydraulic Clutch
6
-21 Rear Axle
6
-22 Surge Tank Pressure Cap
6
-23 Engine Coolant
6
-26 Power Steering Fluid
6
-27 Windshield Washer Fluid
6
-29 Brakes
6
-32 Battery
6
-33 Bulb Replacement
6
-38 Windshield Wiper Blade Replacement
6
-41 Tires6
-52 Lifting Your Corvette
6-56 Appearance Care
6
-56 Cleaning the Inside of Your Vehicle
6
-59 Cleaning a Removable Roof Panel
6
-60 Cleaning the Outside of Your Vehicle
6
-61 Cleaning Your Convertible Top
6
-62 Cleaning Aluminum Wheels
6
-62 Cleaning Tires
6
-62 Finish Damage
6
-63 Underbody Maintenance
6
-64 GM Vehicle Care/Appearance Materials
6
-65 Vehicle Identification Number (VIN)
6
-65 Service Parts Identification Label
6
-66 Electrical System
6
-74 Replacement Bulbs
6
-74 Capacities and Specifications
6
-76 Air Conditioning Refrigerants
6
-76 Normal Maintenance Replacement Parts

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Change both the fluid and filter every 50,000 miles
(80 000 km) if the vehicle is mainly driven under one of
these conditions:

In heavy city traffic where the outside temperature
regularly reaches 90F (32C) or higher.

In hilly or mountainous terrain.

High performance operation.
If you do not use your vehicle under one of these
conditions, change the fluid and filter every
100,000 miles (166 000 km).
See ªScheduled Maintenance Servicesº in the Index for
the proper service intervals for the transmission fluid
and filter.
Manual Transmission Fluid
When to Check
A good time to have it checked is when the engine oil is
changed. However, the fluid in your manual
transmission doesn't require changing.
How to Check
Because this operation can be difficult, you may choose
to have this done at your Chevrolet dealership
Service Department.
If you do it yourself, be sure to follow all the
instructions here, or you could get a false reading.
NOTICE:
Too much or too little fluid can damage your
transmission. Too much can mean that some
of the fluid could come out and fall on hot
exhaust system parts, starting a fire. Be sure
to get an accurate reading if you check your
transmission fluid.
Check the fluid level only when your engine is off, the
vehicle is parked on a level place and the transmission is
cool enough for you to rest your fingers on the
transmission case.

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Part D: Recommended Fluids
and Lubricants
NOTE: Fluids and lubricants identified below by name,
part number or specification may be obtained from
your dealer.
USAGE
FLUID/LUBRICANT
Engine OilThe engine requires a special
Engine Oil meeting GM Standard
GM4718M. Oils meeting this
Standard may be identified as
synthetic, and should also be
identified with the American
Petroleum Institute Certified For
Gasoline Engines ªStarburstº
symbol. However, not all
Synthetic API oils with the
Starburst symbol will meet this
GM Standard. You should look for
and use only an oil that meets GM
Standard GM4718M. For the
proper viscosity, see ªEngine Oilº
in the Index.
USAGEFLUID/LUBRICANT
Engine Coolant50/50 mixture of clean, drinkable
water and use only GM
Goodwrench

DEX-COOL
or
Havoline
DEX-COOL

Coolant. See ªEngine Coolantº in
the Index.
Hydraulic Brake
SystemDelco Supreme 11
Brake Fluid
(GM Part No. 12377967 or
equivalent DOT
-3 Brake Fluid).
Windshield
Washer SolventGM Optikleen
Washer Solvent
(GM Part No. 1051515)
or equivalent.
Hydraulic Clutch
SystemHydraulic Clutch Fluid (GM Part
No. 12345347 or equivalent
DOT
-3 Brake Fluid).
Power Steering
SystemGM Power Steering Fluid (GM
Part No. 1052884
- 1 pint,
1050017
- 1 quart, or equivalent).
Manual
TransmissionDEXRON
-III Automatic
Transmission Fluid.

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Electrical Equipment, Adding 2-24, 3-28, 6-63 . . . . . . . . . .
Electrical System 6-66 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electronic Dual Climate Control System 3-4 . . . . . . . . . . . . . .
EMT 6-42 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine 6-11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accessory Belt 6-77 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adding Coolant 6-26 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air Cleaner/Filter 6-16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking Coolant 6-25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Coolant 5-13, 5-16, 6-23 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Coolant Heater 2-25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Coolant Level Check 7-13 . . . . . . . . . . . . . . . . . . . . . . . . . .
Coolant Temperature Gage 2-82 . . . . . . . . . . . . . . . . . . . . .
Exhaust 2-16, 2-38, 4-30 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuse Block 6-71 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Identification 6-65 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Level Check 7-13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Pressure Gage 2-85 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Overheated Engine Protection Operating Mode 5-8 . . . . . .
Overheating 5-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Curves 6-77 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Running While Parked 2-39 . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications 6-75 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Starting Your 2-23 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Air Cleaner/Filter 6-16 . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Oil 6-12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adding 6-12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Additives 6-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking 6-12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Kind to Use 6-13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Level Check 6-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Life 2-97 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Life Monitor, How to Reset 6-15 . . . . . . . . . . . . . . . . . . . . .
Scheduled Maintenance 7-6 . . . . . . . . . . . . . . . . . . . . . . . . . Used 6
-16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
When to Change 6-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Oil Life Monitor 6-15, 7-5 . . . . . . . . . . . . . . . . . . . . .
Engine Oil Scheduled Maintenance 7-6 . . . . . . . . . . . . . . . . . .
English/Metric Button 2-77 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ethanol 6-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exhaust, Engine 2-16, 2-38, 4-30 . . . . . . . . . . . . . . . . . . . . . .
Exit and Entry Lighting 2-53 . . . . . . . . . . . . . . . . . . . . . . . . . .
Express-Down Windows 2-41 . . . . . . . . . . . . . . . . . . . . . . . . .
Extended Mobility Tires 6-42 . . . . . . . . . . . . . . . . . . . . . . . . .
Exterior Lamps 2-44, 2-51 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fabric Protection 6-57 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fan Control Buttons 3-2, 3-7 . . . . . . . . . . . . . . . . . . . . . . . . . .
Feature, Theft-Deterrent 2-17 . . . . . . . . . . . . . . . . . . . . . . . . .
Fiberglass Springs 6-63 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fifth Gear, Manual Transmission 2-31 . . . . . . . . . . . . . . . . . . .
Filling
A Portable Fuel Container 6
-9 . . . . . . . . . . . . . . . . . . . . . . .
Your Tank 6-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Filter, Air Cleaner 6-16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Finish
Care 6
-61 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Damage 6-62 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
First Gear
Automatic Transmission 2
-29 . . . . . . . . . . . . . . . . . . . . . . .
Manual Transmission 2-30 . . . . . . . . . . . . . . . . . . . . . . . . . .
Fixed Mast Antenna 3-31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Flashers, Hazard Warning 5-2 . . . . . . . . . . . . . . . . . . . . . . . . .
Flat Tire, What to Do 5-18 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Floor Mats 2-60 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fluid Capacities 6-74 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .