The recommended engine oil for a 2001 Dodge Caravan depends on the engine it has. There were several engine options available that year. To be certain,
check your owner's manual. It will specify the correct viscosity (e.g., 5W-30, 10W-30) and the type of oil (conventional, synthetic blend, or full synthetic).
Generally, for that era, a 5W-30 or 10W-30 oil was common, but the exact recommendation will vary based on climate and engine type. Ignoring the owner's manual could lead to engine damage.
