See also:

Cold Temperature Operation
If in an area of extreme cold, where the temperature falls below −20°F (−29°C), use either an SAE 5W-30 synthetic oil or an SAE 0W-30 engine oil. Both provide easier cold starting ...

How OnStar Service Works
Push this blue button to connect to a specially trained OnStar Advisor to verify your account information and to answer questions. Push this red emergency button to get priority help from specially ...

Performance
The Regal I tested packs the base engine — a 2.4-liter four-cylinder that's good for 182 horsepower. There's no way around it: This is a sedate engine. You probably won't notice that it lacks po ...