Routine Maintenance (1984-1991 models. See service manual for later C4s)

On the C4 Corvette, there are several maintenance items which should be attended to on a regular basis. The items are cumulative meaning the frequent items are also done whenever the less frequent items are attended to.

Every 300 miles or every week (whichever comes first):

• Check Engine Oil level
• Check Brake and Power Steering Fluid levels
• Check Engine Coolant level
• Check Windshield Washer Fluid level
• Check Tire Pressures and Condition of tires

Every 3000 miles of every 3 months (whichever comes first):

All of the above plus:

• Check Automatic Transmission Fluid level
• Inspect the Engine Hoses
• Inspect the Windshield Wiper Blades

Every 7500 miles or once a year (whichever comes first):

All of the above plus:

• Change Engine Oil & Oil Filter
• Lubricate Chassis and Top Off all fluids
• Inspect Exhaust, Suspension, Brakes and Steering components
• Replace Fuel Filter and Air filter
• Replace PCV valve
• Rotate Tires
• Check Manual Transmission and Overdrive Oil levels
• Check Rear Axle Oil levels
• Check Throttle Linkage and Throttle Position Sensor setting
• Check Serpentine Belt, Replace if Frayed or cracked
• Check Spare tire

Every 30,000 miles or every 24 months (whichever comes first):

All of the above plus:

• Change Automatic Transmission Fluid and filter
• If Manual Transmission, Change Overdrive Fluid
• Drain, Flush and Refill Cooling system
• Inspect Evaporative Emissions system
• Replace Spark Plugs
• Inspect Plug wires, Distributor and Rotor
• Check Timing and Adjust as required
• Check Shock Absorbers for leakage

Every 100,000 miles or 6 years (whichever comes first):

Perform ALL of the above steps plus:

• Inspect Steering System wear indicators
• Inspect Exhaust Manifold for cracks
• Check Compression of all cylinders
• Check Fuel Flow and pressure
• Replace MAF Power and Burn off relays (1985-1989 L-98)
• Inspect Chassis for Corrosion and/or rust

Routine Maintenance Part Numbers (L-83 & L-98 engine):

Capacities: