NHTSA Complaint #11634656 — 2019 FORD F-150

Purchased Dec 4, 2019; followed maintenance requirements through BO Beukcman Quality Ford. Oil changes made IAW Ford guidelines every 5000 miles. Oil change was made Nov 23, 2023 at 49,504 miles. Just before next oil change noticed engine knocking on acceleration/deceleration with intermittent check engine light on. Oil changed at 54,226 miles (Aug 22, 2024). Condition mentioned to dealer. Dealer advised engine was consuming oil. There was no visible sign of leaks. Fix -- install new dip stick, reprogram the Powertrain Control Module (PCM). Rationale: Ford TSB 19-2365 Dec 5, 2019 quoted as follows: oil consumption "may be due to high intake manifold vacuum during some deceleration fuel shut off (DFSO) events resulting in oil being pulled into the combustion chamber from the crankcase, valve guides and positive crankcase ventilation (PCV)". Supposedly reprogramming would reduce engine vacuum during DFSO events (note: I noticed knocking on acceleration). At the dealership inquired why Ford did not advise customers of condition. They could not answer my question. My F-150 is a 5.0L V8 and was described by dealer as a Coyote engine. I asked if they had similar maintenance events like mine; answer - yes. I was disappointed; have owned previous F-150s and none "consumed" oil like this -- my previous truck had 150,000+ miles -- no oil burning. The dealer instructed me to bring the vehicle back every 1000 miles to check dipstick for consumption. Returned vehicle to dealer at 55,626 and 56,700 miles. On returns, consumption was noted; they topped off my oil with instruction to return again at 57,626 (current mileage 57,435 miles) This is inconvenient and poses a safety risk to me and perhaps others through engine degradation/failure especially while driving. Believe Ford owes the cunsumer a permanent engine fix. Vehicle is available for inspection NHTSA.