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The 2003 Ford Expedition comes with 6 US quarts of 5W-20 motor oil for both the 4.6 liter and 5.6 liter V8 engines. It is recommended to change the oil and filter every 7,500-10,000 miles or 12 months with synthetic oil, and every 3,000-5,000 miles or 6 months with conventional oil. Synthetic oil offers improved lubrication, longer service intervals, and better performance in cold weather compared to conventional oil. Branded lubricants provide double the corrosion protection compared to aftermarket options. A lube and filter service for the Ford Expedition typically costs $125-$130 for parts and labor.
What kind and quantity of transmission fluid do I need?
The 4.6L V8 standard engine and the 5.4L V8 upgraded engine both require 6 quarts of 5W20 synthetic oil.