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5.0L (1979-1995) MustangTechnical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.
Mobil1 10w30 full synthetic with a Motorcraft Filter every 3K since new. 165,000 on original bottom end and still only uses 1 quart every 3000, just like when it was brand new.