Oil Change and the Engine Oil Life System
If your engine is the heart of your vehicle, oil is its lifeblood. Driving around with dirty oil – or not enough oil – can shorten the life of your engine. Over time, repeated heating and cooling as well as the accumulation of particles can make oil thicker. Not only can this decrease its ability to flow (also known as viscosity), it can leave harmful deposits in your engine and cause extensive damage. Chevrolet, Buick, GMC, and Cadillac Certified Service technicians are trained to understand how your vehicle uses oil
and how it monitors oil life. An oil change from a Certified Service expert not only gives you great service, convenience, and a great price, you also receive the added value of knowing that nobody knows your vehicle better. Head to your Chevrolet, Buick, GMC or Cadillac Certified Service dealer when it's time for your vehicle's next oil change.
Engine Oil Life System
Most vehicles are now equipped with the Engine Oil Life System. This system calculates engine oil life based on vehicle use. Most vehicles display a warning message when it is time for an oil change. When the Oil Life System light comes on, bring your vehicle in to the Certified Service experts.
Your Certified Service technician will reset your Oil Life System after an oil change. If you would like to reset the system yourself, ask your technician how, or consult your Owner's Manual.
Oil Change Warning Signs
Keeping an eye on oil level and other measures of your engine’s oil is critical. Lack of proper engine oil maintenance can damage the engine. Below you will find a number of oil change indicators that will help you prevent damage to your engine.
Change Engine Oil Soon
This message will display on your dash when your engine needs an oil change. This message may be displayed if the Oil Life System in your vehicle was not reset during your last oil change.
Oil Pressure Low/Stop Engine
Low engine oil pressure can cause extreme and costly damage to your engine. If this message displays, safely bring your vehicle to a stop and do not restart your engine until the proper engine oil pressure is restored and cause of drop is corrected. You should check the oil level immediately. DO NOT operate the engine with the oil pressure warning light on or an ENGINE OIL LOW ADD OIL message displayed.
One of the most immediate signs of an issue with your vehicle is noticeable oil leaks. If you detect a leak, address it with your dealer as soon as possible. Catching a problem before it is truly a problem can save time and money.
Under Hood Smoke
One of the most recognizable and dangerous oil warning signs is smoke coming from your engine. Oil leaking within the engine compartment burns when it drips onto hot engine parts. Leaks of this type should be addressed immediately.
Heavy smoke from your tailpipe is a strong indicator that oil is being burned within your engine. This can be caused by a number of factors including bad seals, worn piston rings, and more.
Selecting The Proper Oil
For Your Oil Change
Choosing the proper grade of oil is a critical step in completing an oil change. From conventional to full synthetic, your Certified Service experts offer a range of oil types including ACDelco Conventional Oil, ACDelco Dexos1® Synthetic blend and Mobil 1 Full Synthetic. Certified Service experts will know the right grade of oil to use in your specific vehicle’s oil change. You can also check your Owner's Manual for the correct grade.
These oils contain a variety of characteristics that affect your vehicle’s performance, offer varying levels of engine protection and can extend the time between oil changes.
ACDelco Conventional Oil
- Offers quality engine wear and corrosion protection
- Contains special additives that help your engine run smoothly
- Meets/exceeds the applicable industry specifications
ACDelco dexos1® Synthetic Blend
- Offers increased corrosion protection
- Enhances engine cleanliness
Mobil 1® Full Synthetic Oil
- Offers optimal wear and corrosion protection
- Extends range of temperatures where conventional oil would fail
- Provides optimal protection from deposits and sludge build up
Checking Your Oil Level
It is a good idea to check the engine oil level at each fuel fill. In order to get an accurate reading, the oil must be warm, at normal operating temperature and the vehicle must be on level ground. Always consult your Owner's Manual for the proper procedure to check your oil level. You’ll get a more accurate dipstick reading by following those instructions.