2021 Ford F-150: excessive oil consumption

Filed Jun 2, 2026 · Engine, Transmission · VA

2021 Ford F-150 Lariat, 5.0L Coyote V8, purchased new, now 65k miles. Two interrelated safety defects: OIL CONSUMPTION: On 3/21/2026 at 62k miles, I discovered the engine was critically low on oil. Only 3 quarts drained during a full oil change, against a rated 8.8 quart capacity. The engine had been running on one third of required oil. The onboard oil life monitor showed 9% remaining and gave NO low-oil warning, no warning lights, no alerts. No external leak. On 5/22/2026, Koons Ford Woodbridge formally confirmed excessive oil consumption after a documented oil consumption test. Ford TSB 19-2365 acknowledges this exact defect on the 5.0L Coyote for 2018-2020 model years, attributing it to high intake manifold vacuum during deceleration fuel shut-off pulling oil into the combustion chamber. The 2021 engine is mechanically identical. TRANSMISSION: Hard and slipping gear shifts reported to Ford within months of purchase in 2021. Ford issued multiple software updates over the years to mitigate the behavior, most recently late 2025. Fix was temporary; hard/slipping shifts returned. CATASTROPHIC FAILURE: While awaiting Ford HQ authorization on repairs, the vehicle suffered complete drivetrain failure on Friday night. Engine lost power and transmission failed entirely. I was near home and coasted safely off the road. Had this occurred at highway speed during my daily commute, the result could have been catastrophic. Vehicle towed to Koons Ford Woodbridge. SAFETY CONCERN: This is my only vehicle, used for daily highway commuting. The oil consumption defect provides no warning before engine damage. The transmission has degraded despite years of Ford software patches. The vehicle has demonstrated total drivetrain failure capability with no driver warning. Ford Corporate case opened: CXH-07446845-G0J0K0. Filing to document this at the federal level and add to the existing pattern of complaints. Requesting the federal safety agency review whether these defects warrant investigation.

Filed Mar 16, 2026 · Engine · OH

The engine system in the 2021 Ford F-150 is malfunctioning due to excessive oil consumption, in the 5.0L Coyote V8 engine. This is leading to no oil registering on the dipstick; the vehicle and its engine remain available for inspection upon request as they are in the owner's possession and have not been disassembled or repaired. This issue puts the safety of the driver, passengers, and other road users at risk by increasing the chances of engine seizure, overheating, or sudden power loss during operation, which could result in loss of vehicle control, especially at high speeds or while towing, potentially causing accidents, breakdowns in traffic, reduced braking efficiency, or even fires from overheated components, though no such incidents have occurred yet. The problem has been reproduced and confirmed by technicians at Ford Spitzer in Hartville and Valvoline in North Canton, OH, who documented the oil consumption during service visits, consistent with Ford's diagnostic procedures. The vehicle has been inspected by the dealership, which is in communication with Ford corporate for further guidance on warranty repairs, but no inspections by police, insurance representatives, or other third parties have been reported. The main symptom observed is the consistent lack of oil on the dipstick, technicians documenting the engine is as low as 2-3 quarts, indicative of rapid consumption. No warning lamps or dashboard messages have appeared yet, but they could activate if oil levels become critically low, and the exact onset timeline ties to routine maintenance after several thousand miles.

Filed Feb 27, 2026 · Engine · FL

Excessive oil consumption. Consumes more than 1 quart of oil every 5k miles

Filed Jun 27, 2025 · Engine · UT

My engine failed. They recalled this engine but mine wasn't recalled. My engine did the same thing as the recalled engine did. Excessive oil consumption. When I first took it to Ford dealership it was under 60K. I have had problems with my truck since Easter have taken it to them a few times. The problem was never fixed and now Ford will only cover 4,950. The engine is 12k. I feel since the engine in my truck was a recall on alot of engines. Mine should be covered under recall or warranty up to 60,000 miles. I have nothing but problems since I bought the truck. I started taking the truck to have it looked at since March to other places they couldn't help me so they told me to take it to the dealership. They keep fixing something on the truck but never the part that was broken. They told me it would be ok to drive it and so now I am over the mileage for my warranty. I don't think I should have to pay to replace my engine when it only has 61K miles on it. so they told me to drive it and then it started knocking and the engine failed. The service manger told me it was a failed bearing. certanily no lack of maintenance so why am I stuck paying for this when it wasn't my fault. they found some damge on one of the rod bearings on the bottom. 2021 Ford F-150 V8 that engine had a recall on it. Not sure why mine wasn't recalled. Can you please help me. My truck is at Larry H Miller Ford in Draper Utah. It has been there for 5 weeks this time. Still no engine in it.

Filed Jun 13, 2025 · Engine · SC

Vehicle is consuming excessive amounts of motor oil, requiring the addition of 1-2 quarts every 1,200-1,500 miles. Check engine light has illuminated once when engine was five quarts low, this was when I realized the problem. Ford has attempted to correct with TECHNICAL SERVICE BULLETIN 19-2365, (5.0L - Excessive Oil Consumption) which I had performed on my vehicle and it did nothing to correct the issue. My greatest concerns are with premature parts failure and unexpected engine failure. I have written letters to Ford regarding this issue and have not received any response to date. I do have records of additional oil added since first realizing the issue existed.

Filed Mar 7, 2023 · Engine, Fuel system · 15,000 miles · CA

The contact owns a 2021 Ford F-150. The contact stated that upon engaging the A/C, there was an abnormally strong gasoline odor and smoke coming through the A/C vents. The contact also stated the vehicle was experiencing excessive oil consumption. The contact stated that he had been performing an oil change every 2,500 miles. The contact stated that there was blue smoke coming out of the exhaust pipe. An unknown warning light was illuminated. The dealer and the manufacturer were not notified of the failure. The vehicle was not diagnosed nor repaired. The failure mileage was approximately 15,000.

Filed Aug 18, 2021 · Engine · FL

I purchased the truck early 2021. After about 6500 miles, upon starting the vehicle a warning message to the effect of "Oil Level Low, Add Oil" appeared. After manually checking my oil dipstick, I found the oil level to be below the safe oil line. I promptly took the truck to the Ford Dealership in which I purchased it. The service technician informed me of one other case he has personally experienced where the PCV system was defective, allowing an excessive amount of oil to be consumed. Ford was unable to receive my vehicle for service for 1-2 weeks due to a full service schedule. It was at this point I attempted to go to a 3rd party vendor for an oil change. That vendor checked my oil level and confirmed the reading was below the safe oil line. They advised I return to Ford. Concern for my safety and the continued safe operation of the vehicle, I requested the 3rd party vendor to add a quart of oil. In the end, it took 2 quarts of oil to return the oil level to a safe operating zone. I then promptly returned to Ford and spoke to the service department manager. They will accomplish and oil change and return the vehicle to me to perform an oil consumption test over the course of approximately 1,000-1,500 miles, before returning to Ford for further evaluation.