GM’s Oil Life Monitoring System and simplified vehicle maintenance schedule will save you time and money while maintaining your GM vehicle.

So, what are the GM Oil Life System and the simplified maintenance schedule?

GM’s Oil Life System takes the guesswork out of when to change your vehicle’s engine oil.

Instead of the old industry standard of every 3,000 miles or every 3 months, GM owners can rely on their vehicle to let them know when it’s time. This could save you on 2 to 3 oil changes per year, based on 15k miles driven annually. GM’s advanced technology uses an algorithm that tracks engine revolutions and temperature along with driving conditions (stop and go driving/highway driving/combination of both) to predict the oil life percentage based on those parameters. Simply wait for the Oil Life monitor light to appear on the dash.

The first time the light appears, GM recommends a Maintenance I, or MI, service is performed (see below for description). The next time the light comes on, a Maintenance II, or MII, service is performed (see below). Then, based on the Oil Life Monitor light, alternate between MI and MII services. It is that simple. (Maintenance I service is recommended every 12 months, even if the Oil Life Monitor does not come on).