2021 CHEVROLET CORVETTE recommended oil

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14622938) - 2021 - CRC - 2/10/21
Vehicle Care 289
Caution (Continued)
.Do not use scented or gel-type hand
sanitizers. If hand sanitizer comes in
contact with interior surfaces of the
vehicle, blot immediately and clean
with a soft cloth dampened with a
mild soap and water solution.
Interior Glass
To clean, use a terry cloth fabric dampened
with water. Wipe droplets left behind with a
clean dry cloth. If necessary, use a
commercial glass cleaner after cleaning with
plain water.
Caution
To prevent scratching, never use abrasive
cleaners on automotive glass. Abrasive
cleaners or aggressive cleaning may
damage the rear window defogger.
Cleaning the windshield with water during
the first three to six months of ownership
will reduce tendency to fog.
Speaker Covers
Vacuum around a speaker cover gently, so
that the speaker will not be damaged. Clean
spots with water and mild soap.
Coated Moldings
Coated moldings should be cleaned.
.When lightly soiled, wipe with a sponge
or soft, lint-free cloth dampened with
water.
.When heavily soiled, use warm soapy
water.
Fabric/Carpet/Suede
Start by vacuuming the surface using a soft
brush attachment. If a rotating vacuum
brush attachment is being used, only use it
on the floor carpet. Before cleaning, gently
remove as much of the soil as possible:
.Gently blot liquids with a paper towel.
Continue blotting until no more soil can
be removed.
.For solid soils, remove as much as
possible prior to vacuuming.
To clean: 1. Saturate a clean, lint-free colorfast cloth with water. Microfiber cloth is
recommended to prevent lint transfer to
the fabric or carpet.
2. Remove excess moisture by gently wringing until water does not drip from
the cleaning cloth. 3. Start on the outside edge of the soil and
gently rub toward the center. Fold the
cleaning cloth to a clean area frequently
to prevent forcing the soil in to the
fabric.
4. Continue gently rubbing the soiled area until there is no longer any color
transfer from the soil to the cleaning
cloth.
5. If the soil is not completely removed, use a mild soap solution followed only
by plain water.
If the soil is not completely removed, it may
be necessary to use a commercial upholstery
cleaner or spot lifter. Test a small hidden
area for colorfastness before using a
commercial upholstery cleaner or spot lifter.
If ring formation occurs, clean the entire
fabric or carpet.
After cleaning, use a paper towel to blot
excess moisture.
Cleaning High Gloss Surfaces and Vehicle
Information and Radio Displays
Use a microfiber cloth on high gloss surfaces
or vehicle displays. First, use a soft bristle
brush to remove dirt that can scratch the
surface. Then gently clean by rubbing with a
microfiber cloth. Never use window cleaners

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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292 Service and Maintenance
Service and Maintenance
General Information
General Information . . . . . . . . . . . . . . . . . . . 292
Maintenance Schedule
Maintenance Schedule . . . . . . . . . . . . . . . . 293
Special Application Services
Special Application Services . . . . . . . . . . . 298
Additional Maintenance and Care
Additional Maintenance and Care . . . . . 298
Recommended Fluids, Lubricants, and
Parts
Recommended Fluids andLubricants . . . . . . . . . . . . . . . . . . . . . . . . . . . 301
Maintenance Replacement Parts . . . . . . . 302
Maintenance Records
Maintenance Records . . . . . . . . . . . . . . . . . . 303
General Information
Your vehicle is an important investment.
This section describes the required
maintenance for the vehicle. Follow this
schedule to help protect against major repair
expenses resulting from neglect or
inadequate maintenance. It may also help to
maintain the value of the vehicle if it is
sold. It is the responsibility of the owner to
have all required maintenance performed.
Your dealer has trained technicians who can
perform required maintenance using genuine
replacement parts. They have up-to-date
tools and equipment for fast and accurate
diagnostics. Many dealers have extended
evening and Saturday hours, courtesy
transportation, and online scheduling to
assist with service needs.
Your dealer recognizes the importance of
providing competitively priced maintenance
and repair services. With trained technicians,
the dealer is the place for routine
maintenance such as oil changes, tire
rotations, and additional maintenance items
like tires, brakes, batteries, and wiper blades.
Caution
Damage caused by improper maintenance
can lead to costly repairs and may not be
covered by the vehicle warranty.
Maintenance intervals, checks,
inspections, recommended fluids, and
lubricants are important to keep the
vehicle in good working condition.
Do not have chemical flushes that are not
approved by GM performed on the
vehicle. The use of flushes, solvents,
cleaners, or lubricants that are not
approved by GM could damage the
vehicle, requiring expensive repairs that
are not covered by the vehicle warranty.
The Tire Rotation and Required Services are
the responsibility of the vehicle owner. It is
recommended to have your dealer perform
these services every 12 000 km (7,500 mi).
Proper vehicle maintenance helps to keep
the vehicle in good working condition,
improves fuel economy, and reduces vehicle
emissions.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Service and Maintenance 293
Because of the way people use vehicles,
maintenance needs vary. There may need to
be more frequent checks and services. The
Additional Required Services - Normal are for
vehicles that:
.Carry passengers and cargo within
recommended limits on the Tire and
Loading Information label. SeeVehicle
Load Limits 0189.
.Are driven on reasonable road surfaces
within legal driving limits.
.Use the recommended fuel. See
Recommended Fuel 0226.
Refer to the information in the Maintenance
Schedule Additional Required Services -
Normal chart.
The Additional Required Services - Severe are
for vehicles that are:
.Mainly driven in heavy city traffic in hot
weather.
.Mainly driven in hilly or mountainous
terrain.
.Used for high speed or competitive
driving.
.Used for taxi, police, or delivery service.
Refer to the information in the Maintenance
Schedule Additional Required Services -
Severe chart.
{Warning
Performing maintenance work can be
dangerous and can cause serious injury.
Perform maintenance work only if the
required information, proper tools, and
equipment are available. If they are not,
see your dealer to have a trained
technician do the work. See Doing Your
Own Service Work 0233.
Maintenance Schedule
Owner Checks and Services
Check the engine oil level. See Engine Oil
0 237.
Once a Month
.Check the tire inflation pressures. See Tire
Pressure 0267.
.Inspect the tires for wear. See Tire
Inspection 0272.
.Check the windshield washer fluid level.
See Washer Fluid 0249.
Engine Oil Change
When the CHANGE ENGINE OIL SOON
message displays, change the engine oil and
filter within the next 1 000 km (600 mi). If driven under the best conditions, the
engine oil life system may not indicate the
need for vehicle service for up to a year.
The engine oil and filter must be changed at
least once a year and the oil life system
must be reset. Your trained dealer technician
can perform this work. If the engine oil life
system is reset accidentally, service the
vehicle within 5 000 km (3,000 mi) since the
last service. Reset the oil life system when
the oil is changed. See
Engine Oil Life
System 0241.
Engine Air Filter Change
When the REPLACE AT NEXT OIL CHANGE
message displays, change the engine air
filter at the next engine oil change. When
the REPLACE ENGINE AIR FILTER SOON
message displays, the engine air filter
should be replaced at the earliest
convenience. Reset the engine air filter life
system after the engine air filter is replaced.
See Engine Air Filter Life System 0242.
Transmission Fluid Change
When the CHANGE TRANSMISSION FLUID
SOON message displays, change the fluid
and filter within the next 1 000 km (600 mi).
Failure to change the transmission fluid at
required intervals can lead to reduced

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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296 Service and Maintenance
Footnotes—Maintenance Schedule
Additional Required Services - Normal
(1) Or every four years, whichever comes
first. If driving in dusty conditions, inspect
the filter at each oil change or more often
as needed. See Engine Air Cleaner/Filter
0 243.
(2) Or every two years, whichever comes
first. More frequent passenger compartment
air filter replacement may be needed if
driving in areas with heavy traffic, poor air
quality, high dust levels, or environmental
allergens. Passenger compartment air filter
replacement may also be needed if there is
reduced airflow, window fogging, or odors.
Your GM dealer can help determine when to
replace the filter.
(3) Visually check all fuel and vapor lines
and hoses for proper attachment,
connection, routing, and condition. (4)
Or every three years, whichever comes
first. If the vehicle mileage is near the
canister filter replacement interval, replace
the fluid and filter. More frequent fluid and
filter replacement may be needed if the
vehicle is competitively or aggressively
driven. This service can be complex. See
your dealer.
(5) Check the transmission fluid
life percentage. If the percentage is less
than 10%, replace the fluid and filter. The
initial transmission canister filter change
must be performed at 12 000 km (7,500 mi),
and every 36 000 km (22,500 mi) thereafter.
This service can be complex. See your
dealer.
(6) Or every five years, whichever comes
first. See Cooling System 0245. (7)
Or every 10 years, whichever comes first.
Inspect for fraying, excessive cracking,
or damage; replace, if needed.
(8) Replace brake fluid every five years. See
Brake Fluid 0251.
(9) Replace front lift system fluid every five
years. See Recommended Fluids and
Lubricants 0301
(10) Or every 12 months, whichever comes
first. See Wiper Blade Replacement 0253.
(11) Or every 10 years, whichever comes
first. See Gas Strut(s) 0254.
(12) Replace air conditioning desiccant every
seven years.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14622938) - 2021 - CRC - 2/10/21
298 Service and Maintenance
Footnotes—Maintenance Schedule
Additional Required Services - Severe
(1) Or every four years, whichever comes
first. If driving in dusty conditions, inspect
the filter at each oil change or more often
as needed. See Engine Air Cleaner/Filter
0 243.
(2) Or every two years, whichever comes
first. More frequent passenger compartment
air filter replacement may be needed if
driving in areas with heavy traffic, poor air
quality, high dust levels, or environmental
allergens. Passenger compartment air filter
replacement may also be needed if there is
reduced airflow, window fogging, or odors.
Your GM dealer can help determine when to
replace the filter.
(3) Visually check all fuel and vapor lines
and hoses for proper attachment,
connection, routing, and condition.
(4) Or every three years, whichever comes
first. If the vehicle mileage is near the
canister filter replacement interval, replace
the fluid and filter. More frequent fluid and
filter replacement may be needed if the
vehicle is competitively or aggressively
driven. This service can be complex. See
your dealer. (5)
Check the transmission fluid
life percentage. If the percentage is less
than 10%, replace the fluid and filter. The
initial transmission canister filter change
must be performed at 12 000 km (7,500 mi),
and every 36 000 km (22,500 mi) thereafter.
This service can be complex. See your
dealer.
(6) Or every five years, whichever comes
first. See Cooling System 0245.
(7) Or every 10 years, whichever comes first.
Inspect for fraying, excessive cracking,
or damage; replace, if needed.
(8) Replace brake fluid every five years. See
Brake Fluid 0251.
(9) Replace front lift system fluid every five
years. See Recommended Fluids and
Lubricants 0301
(10) Or every 12 months, whichever comes
first. See Wiper Blade Replacement 0253.
(11) Or every 10 years, whichever comes
first. See Gas Strut(s) 0254.
(12) Replace air conditioning desiccant every
seven years.Special Application Services
.Severe Commercial Use Vehicles Only:
Lubricate chassis components every oil
change.
.Have underbody flushing service
performed. See "Underbody Maintenance"
in Exterior Care 0283.
Additional Maintenance
and Care
Your vehicle is an important investment and
caring for it properly may help to avoid
future costly repairs. To maintain vehicle
performance, additional maintenance
services may be required.
It is recommended that your dealer perform
these services —their trained dealer
technicians know your vehicle best. Your
dealer can also perform a thorough
assessment with a multi-point inspection to
recommend when your vehicle may need
attention.
The following list is intended to explain the
services and conditions to look for that may
indicate services are required.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Service and Maintenance 299
Battery
The 12-volt battery supplies power to start
the engine and operate any additional
electrical accessories.
.To avoid break-down or failure to start
the vehicle, maintain a battery with full
cranking power.
.Trained dealer technicians have the
diagnostic equipment to test the battery
and ensure that the connections and
cables are corrosion-free.
Belts
.Belts may need replacing if they squeak
or show signs of cracking or splitting.
.Trained dealer technicians have access to
tools and equipment to inspect the belts
and recommend adjustment or
replacement when necessary.
Brakes
Brakes stop the vehicle and are crucial to
safe driving.
.Signs of brake wear may include chirping,
grinding, or squealing noises, or difficulty
stopping.
.Trained dealer technicians have access to
tools and equipment to inspect the brakes
and recommend quality parts engineered
for the vehicle.
Fluids
Proper fluid levels and approved fluids
protect the vehicle’s systems and
components. See Recommended Fluids and
Lubricants 0301 for GM approved fluids.
.Engine oil and windshield washer fluid
levels should be checked at every fuel fill.
.Instrument cluster lights may come on to
indicate that fluids may be low and need
to be filled.
Hoses
Hoses transport fluids and should be
regularly inspected to ensure that there are
no cracks or leaks. With a multi-point
inspection, your dealer can inspect the hoses
and advise if replacement is needed. Lamps
Properly working headlamps, taillamps, and
brake lamps are important to see and be
seen on the road.
.Signs that the headlamps need attention
include dimming, failure to light, cracking,
or damage. The brake lamps need to be
checked periodically to ensure that they
light when braking.
.With a multi-point inspection, your dealer
can check the lamps and note any
concerns.
Shocks and Struts
Shocks and struts help aid in control for a
smoother ride.
.Signs of wear may include steering wheel
vibration, bounce/sway while braking,
longer stopping distance, or uneven
tire wear.
.As part of the multi-point inspection,
trained dealer technicians can visually
inspect the shocks and struts for signs of
leaking, blown seals, or damage, and can
advise when service is needed.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Service and Maintenance 301
Recommended Fluids, Lubricants, and Parts
Recommended Fluids and Lubricants
Fluids and lubricants identified below by name or specification, including fluids or lubricants not listed here, can be obtained from your dealer.Usage Fluid/Lubricant
Chassis Lubrication Chassis lubricant meeting requirements of NLGI #2, Category LB or GC-LB.
Dual Clutch Transmission See your dealer. Engine Coolant 40/60 coolant/water mixture of clean, drinkable water and use only DEX-COOL Coolant. See Cooling System0245.
Engine Oil Engine oil meeting the dexos2 specification of the proper SAE viscosity grade. Mobil 1 dexos2 full synthetic is recommended. See Engine Oil0237.
Front Lift System (If Equipped) GM Approved DOT 4 Hydraulic Brake Fluid. See Front Lift System0214.
Hydraulic Brake System GM Approved DOT 4 Hydraulic Brake Fluid. Windshield Washer Automotive windshield washer fluid that meets regional freeze protection requirements.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14622938) - 2021 - CRC - 2/10/21
Technical Data 305
Vehicle Data
Capacities and Specifications
The following approximate capacities are given in metric and English conversions.
SeeRecommended Fluids and Lubricants 0301.
Application Capacities
Metric English
Air Conditioning Refrigerant For the air conditioning system refrigerant charge type and amount, see the refrigerant label under the hood. See yourdealer for more information.
Engine Cooling System with Performance Package* 21.5 L 22.7 qt
Engine Cooling System without Performance Package* 20.5 L 21.7 qt
Engine Oil with Filter 7.1 L 7.5 qt
Fuel Tank 70.0 L 18.5 gal
Wheel Nut Torque 190 Y140 lb ft
All capacities are approximate. When adding, be sure to fill to the approximate level, as recommended in this manual. Recheck fluid level
after filling
*Engine cooling system capacity values are based on the entire cooling system and its components.