Excessive oil consumption (2018–2020 F-150 5.0L) (2018–2020)
ModerateFord bulletin 19-2365 covers 2018–2020 F-150 trucks with the 5.0L that use more than one quart of oil in 3,000 miles with no visible leak. Ford attributed it to high intake-manifold vacuum during deceleration fuel shut-off pulling oil past the valve guides, rings and PCV system. The fix is a PCM recalibration, and trucks built on or before Oct. 4, 2019 also get a new dipstick with a wider two-quart operating range.[8]
Symptoms
- Oil level drops between changes with no drips or external leaks
- Low-oil warning or noticeably low dipstick reading before the scheduled change
Check before buying
- Ask whether TSB 19-2365 (or earlier 19-2058/19-2133/19-2338) was performed — service records will show a PCM reflash
- Pull the dipstick and compare oil level and color with the date of the last change
- Look for blue smoke on deceleration or oil residue in the intake tract