Chevrolet 2008 Impala Owner's Manual page 350

Fuel Tank
3.5L Engine (with NU6 emissions) sold new in CA, ME,
VT, NY, MA (see your dealer/retailer for bordering states)
3.5L Engine (without NU6 emissions) sold new in all
other states (see your dealer/retailer for more information)
3.9L Flexible Fuel and 5.3L Engines sold in all states
Power Steering Coolant
Wheel Nut Torque
All capacities are approximate. When adding, be sure to fill to the approximate level, as recommended in this
manual. Recheck fluid level after filling.
Engine
3.5L V6
3.5L Flexible Fuel V6
3.9L V6 with Active Fuel
Management™
Flexible Fuel
5.3L V8 with Active Fuel
Management™
5-104
Application
Engine Specifications
VIN Code
N
K
3
C
Capacities
English
17.0 gal
17.5 gal
17.5 gal
0.93 qt
100 lb ft
Transmission
Automatic
Automatic
Automatic
Automatic
Metric
64.4 L
66.2 L
66.2 L
0.88 L
140 Y
Spark Plug Gap
0.040 inches (1.01 mm)
0.040 inches (1.01 mm)
0.040 inches (1.01 mm)
0.040 inches (1.01 mm)