The 2018 Grand Caravan with the 3.6 L V6 engine uses 6 quarts of engine oil when performing a full oil change, including replacement of the oil filter.
In more detail, the 3.6 L Pentastar engine used in this model has an official oil capacity of 6 quarts (about 5.7 liters) with the filter. The recommended viscosity for most temperatures is 5W-20. For exact specifications and any regional variations, always refer to the owner's manual or the oil cap on your engine.
Official capacity and recommended oil
The manufacturer’s specification lists 6 quarts (5.7 L) with the filter for a full oil change. This figure helps you buy the right amount of oil and ensures you fill to the correct level on the dipstick.
Practical tips for changing oil
When performing an oil change, replace the oil filter and plan to add a total of 6 quarts to bring the engine to the full mark on the dipstick. After adding the oil, run the engine briefly, turn it off, wait a moment, and recheck the level on the dipstick; add more if necessary to reach the full line. Use 5W-20 oil for most climates unless your manual specifies a different grade for your region.
Summary
Bottom line: The 2018 Dodge Grand Caravan with the 3.6 L engine requires 6 quarts of engine oil with the filter for a full change, typically using 5W-20 oil. Always verify with the owner's manual and check the dipstick to ensure a proper fill.