For 2007 - 2008 Saturn Aura 3.5L V6. For 2005 - 2010 Pontiac G6 3.5L & 3.9L V6. For 2004 - 2010 Chevrolet Malibu 3.5L & 3.9L V6. Do not loosen the radiator cap while the engine and radiator are hot. Serious injuries, such as burns, may result from hot coolant and steam released under pressure.