To find the exact amount, you should:
1. Check your owner's manual: This is the best source of information. It will specify the coolant capacity for your specific vehicle.
2. Look for a sticker: Some vehicles have a sticker under the hood indicating the coolant capacity.
3. Consult a repair manual: A Haynes or Chilton repair manual for your specific year and model will have this information.
4. Check online forums: Search online forums dedicated to Dodge Dakotas (like Dakota-Forums.com or similar) for posts about coolant capacity. Be aware that information from forums might not always be accurate.
Without consulting one of these resources, I can only give a *rough estimate*. The capacity is likely to be in the range of 10-12 quarts, but this is just a guess. Do not rely on this estimate for filling your cooling system. Using an incorrect amount could damage your engine.