Quantcast Ford Truck Club Forum - View Single Post - High mileage oil
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Old July 7th, 2018, 09:48 AM
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https://mobiloil.com/en/motor-oils/m...r-high-mileage

I would use 5w30. I also recommend a Motorcraft filter.

2003 F-150 XL RCSB 2wd 4.2 5 speed 3.55 LS