The main difference between 10W-40 oil and 15W-40 oil is that 15W-40 oil has a higher viscosity than 10W-40 oil. 10W-40 oil allows the engine to run freely.
The W stands for Winter. The 5w30 flows easier at lower temperatures. It is a 5 weight oil at low temperatures where the 10w40 is a 10 weight at low temperatures.
The 10W 40 oil is thicker and is thought by many to be more efficient.
Viscosity. 5W-30 is a "thinner" oil than 10W-40 is.
Neither one of these. Your car requires SAE 5w30 weight oil.
Either 10w30 or 5w30 are fine.
10w-30 is the recommended oil for a 2004 Chrysler Pacifica3.5L 10w303.8L 5w30
5w30. it should say that on the oil cap. it takes 6.5 quarts with a filter.
SAE 5w30 oil is an oil designed for cold and warm temperatures. It is basically a 5 weight oil when it is cold and becomes a 30 weight oil when it reaches full operating temperatures.
The weight of the oil when it is cold. The 15w is a thicker oil than the 10w when it is cold.
5w-30 is best to use but yes you can use 10w -30. Any w30 oil will work but 5w30 is recommended
if you live in a very cold region, otherwise 10w 30 is better