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The 2004 Ford F-150 pickup truck is equipped with multiple engine options, with four of them being a 5.4L V8. All engines require SAE 5W-20 full synthetic motor oil, but the amount needed varies slightly based on the specific engine code. Vehicles with H, M, or Z engines need 6.0 quarts of oil, while those with a 5 engine code need 7.0 quarts. In the absence of SAE 5W-20, SAE 5W-30 can be used as a temporary replacement. However, it's not recommended to do so unless necessary, as using thicker oil can increase engine friction, leading to premature wear and reduced efficiency, potentially resulting in engine failure at a lower mileage.
A 2004 Ford F-150 equipped with a 5.4L engine will require 5w-20 synthetic oil and will hold up to 7 US quarts when changing the oil.