When I parked my C7 last fall, the engine oil monitor indicated 59% oil life remaining. Over the winter this number dropped to 10% without ever being started. I'm getting the oil changed Monday and will ask the dealership about this, but in the meantime I'm curious if any one else has had a similar experience with this?
Majgi this is directly out of the 17 Z06 manual. It states the oil life monitoring system works off how the car is driven. But later on it says the oil must be changed once per year.. so not clear if it is time factored.
In my case for the last 2 C7 Zs the oil life monitor stays the same all winter in storage. I use the Chevy App to keep an eye on the car over the winter so the oil life is something the app grabs and displays
You better check and make sure there isn’t a set of winter tires on your Vette that you didn’t put on....
Engine Oil Life System
When To Change Engine Oil
This vehicle has a computer that indicates when to change the engine oil and filter. This is based on a combination of factors which include engine revolutions, engine temperature, and miles driven. Based on driving conditions, the mileage at which an oil change is indicated can vary considerably. For the oil life system to work properly, the system must be reset every time the oil is changed.
Z06, Grand Sport, and Sting Ray with Z51 have a racetrack-ready dry sump engine lubrication system. This high performance system operates differently than a standard engine lubrication system and requires a special procedure when changing the engine oil and filter. See Engine Oil.
When the system has calculated that oil life has been diminished, it indicates that an oil change is necessary. A CHANGE ENGINE OIL SOON message comes on. Change the oil as soon as possible within the next 1 000 km (600 mi). It is possible that, if driving under the best conditions, the oil life system may not indicate that an oil change is necessary for up to a year. The engine oil and filter must be changed at least once a year and, at this time, the system must be reset. Your dealer has trained service people who will perform this work and reset the system. It is also important to check the oil regularly over the course of an oil drain interval and keep it at the proper level.
If the system is ever reset accidentally, the oil must be changed at 5 000 km (3,000 mi) since the last oil change. Remember to reset the oil life system whenever the oil is changed.
Dry Sump Engine Break-In Oil Change
If equipped with a dry sump engine, the initial oil and filter change must be performed at 800 km/500 mi. Follow the engine oil life system for every oil change thereafter.
How To Reset The Engine Oil Life System
Reset the system whenever the engine oil is changed so that the system can calculate the next engine oil change. To reset the system:
Scroll through the DIC Info Pages menu until the REMAINING OIL LIFE percentage is displayed. See Driver Information Center (DIC).
Press and hold the SEL button on the DIC while the Oil Life display is active. The oil life will change to 100%.
If the CHANGE ENGINE OIL SOON message comes back on when the vehicle is started, the engine oil life system has not reset. Repeat the procedure.
My Z06 today... same as the fall for oil life.