2008 Chevrolet Impala Owner's Manual - Page 350

Application 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 Capacities English Metric 17.0 gal 17.5 gal 17.5 gal 64.4 L 66.2 L 66.2 L Power Steering Coolant 0.93 qt 0.88 L Wheel Nut Torque 100 lb ft 140 Y 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 Specifications 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™ VIN Code N K 3 C Transmission Automatic Automatic Automatic Automatic 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) 5-104