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When using the 2.4-liter inline-4 engine in a 2006 Dodge Grand Caravan, it requires 4.7 liters (5 quarts) of 5W-30 oil. The 3.3-liter V6 models also need the same amount of oil as the 4-cylinder engine, but it is recommended to use 5W-20 instead. Dodge advises changing the oil in the Grand Caravan every 6,000 miles or 6 months, whichever comes first, but your specific maintenance schedule should reflect your driving habits. Signs of excessive exhaust or engine knocking indicate you have waited too long before an oil change. Regularly checking the oil level and quality can help prevent costly engine damage. On average, an oil change for this van costs between $110 and $120, with labor accounting for about $30 to $50 of the total price.
The 2006 Dodge Grand Caravan offers two engine choices: a 2.4L inline-4 and two variations of the 3.3L V6 (one that is not compatible with flex fuel and one that is). Each engine requires 5 quarts of synthetic oil. The 2.4L inline-4 engine uses 5W30 oil, whereas both versions of the 3.3L V6 engine use 5W20 oil.