Buick Regal: Fuel E85 (85% Ethanol)
Vehicles that have a FlexFuel badge and a yellow fuel cap can use either unleaded gasoline or ethanol fuel containing up to 85% ethanol (E85).
See Fuel E85 (85% Ethanol) . For all other vehicles, use only the unleaded gasoline described under Recommended Fuel .
Engine Oil Life System
The engine oil life system calculates engine oil life based on vehicle use and displays the CHANGE ENGINE OIL SOON message when it is time to change the engine oil and filter. The oil life system sho ...Driving for Better Fuel Economy
Driving habits can affect fuel mileage. Here are some driving tips to get the best fuel economy possible. ► Avoid fast starts and accelerate smoothly. ► Brake gradually and avoid abrupt ...See also:
Other Navigation Services
Available from OnStar
OnStar eNav: Allows subscribers
to send destinations from Google
Maps™ and MapQuest.com to their
Turn-by-Turn Navigation or
screen-based navigation system.
When ready, the directions will b ...
Inputting the phone number
1. Press the OFF hook switch .
2. Select “Phonebook” by operating the “TUNE/TRACK/CH” dial.
3. Select “Add Entry” by operating the “TUNE/TRACK/CH” dial.
4. Select “Manual Input” ...
Replacing spark plugs
Iridium-tipped
spark plugs
It is not necessary to replace iridium-tipped (A) spark plugs as frequently as
conventional type spark plugs because they last much longer. Follow the maintenan ...