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In the 2005 Ford Expedition, the recommended oil type is 5w20 and the oil capacity is 7 quarts. It is crucial to monitor the oil closely as there may be issues over time. A common problem is a strong burning smell, which should be addressed promptly to prevent any potential danger of a car explosion. Poor quality or old oil can lead to engine failure and result in unusual knocking noises from the engine. Additionally, you may notice a decrease in gas mileage. Using high-quality oil is essential for the engine to function smoothly. It is necessary to change the oil regularly, ideally every 5,000 to 10,000 miles, to avoid engine problems in the future.
The sole motor option for the 2005 Ford Expedition is the 5.4L V8 engine, which needs 7 quarts of synthetic 5W20 oil.
The Ford Expedition does not need 5W full synthetic or synthetic blend oil.