Fuel E85 (85% Ethanol)
If the vehicle has the 3.9L V6 engine (VIN Code M), you can use either unleaded gasoline or ethanol fuel containing up to 85% ethanol (E85). See Fuel. In all other engines, use only the unleaded gasoline described under Gasoline Octane.
Vehicles that have the 3.9L V6 engine (VIN Code M) have a green fuel cap and can use 85% ethanol fuel (E85). See Fuel E85 (85% Ethanol).
See also:
Engine Heater
The engine coolant heater,
if available, can help in cold weather
conditions at or below −18°C (0°F)
for easier starting and better fuel
economy during engine warm-up.
Plug in the coo ...
Customer Satisfaction Procedure
Your satisfaction and goodwill are important
to your dealer and to Buick. Normally, any
concerns with the sales transaction or the
operation of your vehicle will be resolved by your
GM dealer’s ...
Engine Drive Belt Routing
2.4L L4 Engine
Belt removal and installation
requires special tools. See your
dealer for service.
3.6L V6 Engine ...