What's the 2004 mazda 6 v6 oil type?

For the 2004 Mazda6 with the 3.0 L V6 engine it needS5W-20 Synthetic Motor Oil in all temperatures. The capacity for the vehicle iS5.5 quarts with a filter and the torque for the drain plug is 16 to 21 ft/lbs. 5W-20 means that 5 is the thickness or the viscosity of the oil at startup, w is for winter and 20 is the thickness or the viscosity of the oil at operating speeds. The reason to use oil is because it helps to keep the engine clean. You should change the oil and the filter every 7,500 miles or so because it doesn't last forever. The cost of an oil change is anywhere from $50 to $70 in labor costs and extra for parts.