I have a Buick Lucerne and live in the Omaha area. I called GM (1-800-521-7300) to ask how the sensor worked. They said it actually worked off of sensing heat and RPMs of the engine and NOT by keeping track of how many miles have been placed on the vehicle. I also contacted local Buick dealerships (Plaza @ (402) 593-4000) and Reagan @ (402) 330-0400" ) who also said the sensor does NOT work by keeping track of how many miles have been placed on the vehicle.
With that said, the GM people suggested changing the oil based off the sensor while the dealerships suggested changing the oil based off 3 months/3000 miles. I contacted GM and told them the dealership contacts and the dealership suggestions. They put me on hold and in turn contacted the dealerships. GM then said that I should go by what the dealerships said (3 months/3000 miles) since the dealership takes into account location (weather, city, etc).
Hope that helps.
My question is, why put a sensor on a car that I should ignore?
Tuesday, September 24th, 2019 AT 8:31 PM