What is the correct number of liters oil for an change on a 2003 Ford Ranger with 3liter v6?

The 2003 Ford Ranger with a 3.0L V6 typically requires 4.5 to 5 quarts of oil. Since there are approximately 0.946 liters in a quart, that translates to roughly 4.25 to 4.73 liters.

Always check your owner's manual for the most precise and recommended amount. The amount might slightly vary depending on the specific oil filter used. It's better to slightly underfill than overfill.