• Visit a Certified Service dealer near you for offers on oil changes for your vehicle.
Watch a video and find out why you should use dexos1 oil for your vehicle.


Today’ smaller, higher performance engines require proper lubrication to maintain maximum fuel economy, wear reduction and to improve engine cleanliness.
Not only is dexos1 Gen 2 Full Synthetic Oil affordable and specifically engineered for GM vehicles, it’s backwards compatible with previous model years for your Chevrolet, GMC, Buick or Cadillac. That’s why we use it as the standard oil at Certified Service.

Learn about the benefits of using ACDelco dexos1 Synthetic Blend in your vehicle.


Lack of proper engine oil maintenance can potentially damage your engine, imposing costly repairs. Below you will find a number of indicators that will help you prevent damaging your engine.

Oil Life Monitoring Prompt

When the CHANGE ENGINE OIL SOON message displays, service is required for your vehicle as soon as possible. In some cases, the Oil Life Monitoring System might not indicate the need for vehicle service for up to a year. The engine oil and filter must be changed at least once a year and the Oil Life Monitoring System must be reset.

If your vehicle is not equipped with an Oil Life Monitoring System, consult your Service and Maintenance Schedule located in your vehicle Owner's Manual.

Tailpipe Smoke

Heavy smoke from your tailpipe, perhaps with a blue tinge, is a strong indicator that oil is being burned within your engine. This can be caused by a number of factors. If you are experiencing any unusual tailpipe emissions, see your Certified Service experts right away.

Oil Leaks

One of the most immediate signs of an issue with your oil is a noticeable leak. If you detect a leak, address it with your Certified Service expert as soon as possible. Catching a problem early can save you time and money and prevent a potential roadside emergency.

Oil Pressure Low / Oil Level Low

Low engine oil pressure or low oil level can cause extreme and costly damage to your engine. If this message displays, safely bring your vehicle to a stop as soon as is practicable. Check the oil level immediately or contact Roadside Assistance to get you on your way or to bring your vehicle to a Certified Service dealer.

Under-Hood Smoke

One of the most recognizable and dangerous oil warning signs is visible smoke coming from your engine. Oil leaking within the engine compartment burns when it drips onto hot engine parts and can be potentially hazardous. Leaks of this type should be addressed immediately by roadside assistance.



With the all-new myChevrolet, myBuick, myGMC, or myCadillac mobile apps, you can monitor vehicle diagnostics information, including fuel range, fuel level, and KMs per litre. You can also keep track of oil life and tire pressure, access vehicle features remotely, and manage account information all from your smartphone.

The Oil Life System tells you precisely when it's time to change your oil, based not only on your driving patterns and mileage, but also things like the climate of your area. This means that changing your oil every 5,000 km may no longer be necessary. Certified Service technicians at your Chevy, Buick, GMC, and Cadillac dealer are trained to understand how your vehicle uses its oil and can help keep your vehicle on an appropriate service schedule.

The vehicle’s mobile app* (myChevrolet, myBuick, myGMC, myCadillac) is available on select iOS, Android™, BlackBerry® and Windows® devices. Services vary by device, vehicle, and conditions. Requires automatic locks and Tire Pressure Monitoring System. Active OnStar service required. Visit onstar.ca for more details.

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