How do I check the oil in a 2025 Chevrolet Corvette C8 E-Ray HTC?

Checking the oil on a C8 E-Ray Hard Top Convertible (HTC) is a straightforward process, but it requires knowing a specific trick to access the engine bay without fully dropping the top, as well as following the standard dry-sump oil check procedure.

Difficulty: Easy

Here is the step-by-step procedure:

1. Warm up the car and keep it running Because the C8 uses a dry-sump oil system, the engine oil must be up to operating temperature and the engine must be running at idle when you check the level ¹. If you check it with the engine off, you will get an inaccurate, artificially low reading and risk overfilling the system.

2. Open the tonneau cover (Maintenance Mode) With the car idling in park, you need to lift the rear deck lid to access the dipstick. Owners generally agree that using the key fob to trigger "maintenance mode" is the best way to do this:

• On your remote, press the Lock button, then immediately press and hold the Convertible Top button.
• The rear deck lid will raise up and stop in place, giving you direct access to the oil port ².

Alternative method: You can also use the interior convertible top switch. Just start the normal process to lower the top, and release the button as soon as the rear deck lid opens ².

3. Check the level Pull the dipstick, wipe it clean with a lint-free rag, reinsert it completely, and pull it out again to read the level. Keep the dipstick pointed downward so the oil doesn't run up the stick and skew your reading. The oil should be within the crosshatched area.

4. Close the deck lid Once you're done and the dipstick is securely seated, you can close the tonneau cover. If you used the key fob method, simply press the Lock button again, followed by holding the Convertible Top button to reverse the movement and latch the deck lid ².