The amount of oil required to fill a big truck engine can vary depending on the specific make, model, and size of the engine. Generally, big truck engines have larger oil capacities compared to smaller passenger vehicles. Some big truck engines can require up to 30 quarts of oil or more.
For accurate information, it's always recommended to refer to the owner's manual or maintenance guide specific to the make and model of the truck. The owner's manual will provide the exact oil capacity and any specific oil requirements for the engine.
