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GM Technologies


The same innovations that make your Chevrolet, Buick, GMC or Cadillac remarkable make our maintenance extraordinary. The trained technicians and service experts at your dealership have the know-how and the diagnostic tools and equipment to service your vehicle right.

dexos1 Engine Oil

Maximize your vehicle's performance with dexos1

This synthetic blend motor oil will keep your engine cleaner, improve fuel efficiency and promote a longer engine life span - which can all save you money. dexos1 has been specially formulated for all new Chevrolet, Buick, GMC and Cadillac vehicles, and can be used in all previous GM gasoline engines.

dexos1(TM) Engine Oil

The ultimate oil performance and protection to help improve engine durability.

  • dexos1 exhibits improved oxidation and wear performance which provides improved fuel economy
  • Increased piston cleanliness delivers maximum engine performance
  • Lower volatility delivers reduced oil consumption resulting in fewer oil changes
  • Greater viscosity control helps to deliver improved fuel efficiency

OnStar Vehicle Diagnostics1

OnStar Vehicle Diagnostics(1)

With OnStar Vehicle Diagnostics you're always prepared for the road ahead.

About every 30 days, some of your vehicle's key systems like your engine, transition and anti-lock brakes are checked while you drive. You receive an automatic email report that includes:

  • Your current odometer reading
  • Remaining oil life
  • Maintenance reminders
  • Subscription notices and more

Between monthly reports, you can also request On Demand Diagnostics checks from the team of service experts at you dealership. Just push your blue OnStar button.

Oil-Life Monitoring System*

Conserve oil and protect your engine with the Oil-Life Monitoring System.

The oil-life monitoring system system senses when the oil in a vehicle is nearing the end of its useful life and notifies the driver with a "change oil" message on the dashboard, ultimately protecting the engine from premature wear.

Oil Life Monitor Certified Service.

Rather than depending on fixed oil change schedules that may not be suitable for all situations, the monitoring system customizes the oil change schedule based on the vehicle's engine and transmission type, and the individual's driving habits.