Changing the oil on a C5 is one of the easiest DIY jobs on a Corvette. The biggest challenges are getting a low car in the air safely and avoiding a mess. This is a general overview. Use the oil spec and capacity in your owner's manual, and the factory service manual for any torque values.
What you'll need
- The correct oil, in the viscosity and spec listed in your owner's manual
- A quality oil filter for the LS1 or LS6
- A new drain plug gasket or seal if your plug uses one
- A drain pan, funnel, filter wrench and shop towels
- A low-profile jack, jack pads and jack stands (or ramps that clear the front fascia)
- Gloves and eye protection
Lifting the car
C5s have specific factory lift points. Many owners use rubber jack pads (often called "pucks") that fit those points, to avoid damaging the frame rails or rocker panels. Your owner's manual and factory service manual show where the lift points are. If you use ramps, check that the front fascia clears them. Many owners use extensions or approach at an angle.
Steps
- Warm the engine briefly so the oil drains well, but not so hot that it's dangerous to handle.
- Lift and secure the car on jack stands at the proper lift points, or on ramps with the rear wheels chocked.
- Drain the oil. Find the drain plug on the oil pan, place the pan underneath and remove the plug. Let it drain fully.
- Remove the filter. Expect some oil to come out. Make sure the old filter's gasket came off with it.
- Install the new filter. Lightly oil the new gasket and tighten as directed by the filter maker or service manual.
- Reinstall the drain plug with a new gasket if required, tightened to the spec in your service manual.
- Lower the car to level ground.
- Refill with the amount listed in your owner's manual. Add most of it, check the dipstick, then top up as needed.
- Start the engine and check for leaks under the car. Shut it off, wait a few minutes, and check the level again.
Reset the oil life monitor
C5s have an oil life monitoring system. The reset procedure is in your owner's manual and usually uses the driver information center buttons.
Tips
- Keep a log of the date, mileage and products used. It helps with resale.
- LS engines can use a small amount of oil. Check the level between changes, especially before a long drive or track day.
- Dispose of used oil and filters at a recycling center or a parts store that accepts them.
Safety note
Never get under a car supported only by a jack. Use rated stands on solid, level ground. Hot oil can cause serious burns.