The Ford F-150 has long been known as one of the most trusted pickups on the road. Over the years, the vehicle has gained a strong reputation for being durable, powerful, and able to tow heavy objects with relative ease. Ford dealerships nationwide have been touting the F-150’s rugged reliability, while customers have come to rely on the truck to get the job done, whether it’s around the house or at work.

But for many owners, the Ford F-150’s reputation may be starting to change. Instead of enjoying the powerful engine and reliable performance of their truck, owners have been noticing that oil consumption seems to be higher than normal. Rather than just changing the oil every 5,000 or so miles, many owners are having to constantly monitor their oil levels and add more frequently between services. While some owners have been able to avoid more serious consequences, others are growing increasingly concerned with how normal this new development really is.

And now, due to the sheer number of similar complaints, Ford is finding itself in court. Multiple class action lawsuits have been filed against the company, with owners claiming that the Ford F-150’s 5.0L Coyote V8 engine suffers from a serious design defect. Ford, on the other hand, is arguing that the oil consumption is actually well within normal limits. The topic has become a serious legal and engineering dispute, with many owners seeking answers as to why their trucks are having these issues.

1. A Trusted Truck Faces Growing Concerns

The Ford F-150 has long been one of America’s most popular and reliable pickups. Year after year, the truck has been selling in high numbers, with many customers buying the vehicle for its power and performance. Ford has been able to provide owners with a vehicle that gets the job done, whether it’s going off-road or hauling heavy objects back to the house.

Customer Expectations and Concerns:

• Build trust with customers
• Provide dependable performance
• Allow customers to get the job done
• Maintain positive brand image
• Increase number of customer complaints

Many owners bought the Ford F-150 for its reliability, and have grown to expect this level of performance from their truck. Ford dealerships have been marketing the F-150 as a dependable vehicle that can last for years, and many buyers have made their decision based on this information. In fact, many owners are relying on their trucks to make a living due to the jobs that they do. But with these concerns about abnormal oil consumption, many owners are starting to wonder if Ford is truly as reliable as they’ve been made out to be.

2. Abnormal Oil Consumption Complaints

Any vehicle with an internal combustion engine will burn off a certain amount of oil between services. At certain points in a vehicle’s lifespan, it’s normal for a car to burn oil at a slightly higher rate than normal. Between regularly scheduled maintenance, it’s also perfectly normal for the oil in the engine to decrease slightly due to the movement of internal engine parts. As long as the oil levels remain high enough and the engine is sufficiently lubricated, it can continue to operate normally.

Oil Consumption Complaints:

• Maintain proper oil levels
• Compare mileage to normal burn rates
• Check for abnormal oil consumption
• Schedule routine engine service
• Monitor any developing concerns

Owners who have filed a complaint are saying that the rate of oil consumption being displayed by their trucks is abnormal. Between oil changes, many owners are having to refill their engine with an entire quart of oil for every 1,000 miles driven. Many others are claiming that they’re having to refill the motor more frequently, sometimes having to add another quart even before the recommended time comes around. Some owners are even reporting that they have to add multiple quarts of oil before getting the chance to change the oil again. These reports have led to growing concerns that something may be wrong with the engines in question.

Many automotive mechanics would say that it’s completely normal for a motor to burn between a quart of oil every 3,000 to 5,000 miles. At such a distance, the oil in most engines would have burned off at a much lower rate than what many owners are reporting. This abnormal oil consumption level is one of the factors that has led to the current legal disputes between Ford and many of its owners.

3. Ford’s Explanation of Normal Oil Consumption

Ford has stated that a burn rate of around 1 quart of oil every 1,000 miles is completely normal for many of the affected engines. Many owners feel that the amount of oil needed between services is unreasonably high, and can cause more harm than good if done repeatedly. According to Ford’s maintenance recommendations, many of the reported cases of oil consumption fall within normal limits, and therefore aren’t considered a defect that requires correction.

Ford’s Position:

• Determine normal oil consumption rates
• Maintain standard engine performance
• Address concerns of mechanical defects
• Continue legal defense of manufacturing
• Continue current disputes

This stance has caused many owners to accuse Ford of downplaying the issue, and has led to the numerous class action lawsuits currently taking place. Many owners feel that the oil consumption reported by their vehicles is abnormal, and should be replaced more often. Owners are also feeling that it’s unreasonable to have to constantly keep track of their oil levels, which many feel shouldn’t be an issue with trucks of this age. Owners are also concerned that the neglect of proper oil consumption could lead to further mechanical defects, such as serious engine damage.

The disagreements between Ford and the numerous class action lawsuit organizers has resulted in the current disputes taking place. Ford continues to refute the accusations, stating that most reported issues fall within normal operating limits. The owners who have filed a complaint, on the other hand, feel that Ford has minimized the problem, and has disregarded many of the concerns that have been brought to their attention.

4. Identifying the Warning Signs

Many owners have stated that the first few signs of their concerns appearing were well before the next regularly scheduled maintenance service. Owners who file a complaint typically report checking the engine oil with a dipstick on a regular basis, and have noticed the levels steadily dropping. For many owners, this has been the initial wake-up call that something may be wrong with their engine. Any driver who owns a vehicle with an internal combustion engine should regularly check the levels of the engine oil in their vehicle.

Warning Signs:

• Check engine oil on a regular basis
• Monitor status of engine light
• Watch for unusual smoke from tailpipe
• Listen for any abnormal sounds
• Watch for reduction in engine performance

As these oil consumption issues develop, some owners have also started to see the illumination of warning lights on their dashboard. Many owners have reported seeing the low oil pressure warning lights, even between regularly scheduled maintenance services. Some owners have also been able to identify more visual signs of developing issues, such as seeing blue-gray smoke coming from the tailpipe upon start-up or while driving. This can be a sign that the engine is burning off oil at an abnormal rate, and should be checked by a qualified mechanic as soon as possible.

Other developing concerns can also be identified through the sounds emanating from the engine. Many owners have reported hearing knocking, tick, or even rumbling sounds coming from the engine. Some are also reporting that the power and performance of their engines has dropped dramatically, or that the spark plugs have become fouled. While not all owners have experienced all of these issues, many have found that they occur more frequently as the rate of oil consumption begins to increase.

5. Mechanical Issues Behind the Abnormal Consumption

According to the class action lawsuits, the main problem behind the oil consumption issues lies in the 5.0L Coyote V8 engines. Owners are filing a complaint due to the abnormal burning off of engine oil by the affected powerplants. Many owners and experts are saying that a defect in the design of the 2018-2020 Ford F-150’s 5.0L Coyote V8 engines causes the engine to burn off far too much oil between services.

Potential Issues:

• Review engine design specifications
• Check piston ring performance
• Inspect engine cylinder linings
• Determine cause of oil combustion
• Evaluate engine lubrication

According to the findings presented in the lawsuits, the plasma wire arc thermal spray cylinder liners, along with the faulty piston ring packs, aren’t producing a suitable seal. Once the engines start to operate, it causes the engine oil to seep into the combustion chamber instead of staying within the engine. Once the oil reaches the chamber, it gets burned off, which not only removes it from circulation but renders it completely useless. Due to this malfunction, it’s causing many of the reported oil consumption cases.

The owners who filed a complaint are arguing that this defect should not have occurred under normal operating conditions. While Ford continues to deny the allegations, many believe this is simply another way for the company to avoid taking responsibility for the faulty design.

6. Effects of Oil Combustion on Performance

The combustion of engine oil can cause more issues than just oil consumption. Due to the nature of this malfunction, it can cause the accumulation of carbon deposits on the engine’s intake valves. This can not only reduce the performance of the engine, but can also affect the power and overall drivability of the vehicle. Many drivers are also concerned that these effects could eventually take a greater toll on the overall performance of the engine.

Potential Effects:

• Increase carbon buildup on valves
• Affect engine performance and power
• Reduce engine’s overall efficiency
• Cause further mechanical defects
• Affect overall engine reliability

Some of the lawsuits mention that the accumulation of carbon deposits has caused various concerns for the owners who filed them. Many are experiencing sluggishness from the power loss, as well as unusual noises coming from the engine. Some are also reporting that their engines misfire intermittently, and cause rough idle from time to time. In the most severe cases, some owners are even reporting that their engines have stalled right in the middle of the road.

Further issues could also arise from the effects of increased oil combustion. If this continues to take place unchecked, it could cause excessive wear and tear on vital engine components. Due to this, some owners are worried about the long term reliability of the engine, and the overall cost of the repairs in the event that the engine needs to be replaced.

7. Ford’s Technical Service Bulletins for the Issue

With the rise in reported issues, Ford has released a series of technical service bulletins to Ford dealerships to help them diagnose and recommend solutions for the concerns. Ford has stated that the issues experienced by many of the affected owners fall well within normal operating parameters. The company has been addressing the complaints by providing a series of technical service bulletins for the 2018-2020 Ford F-150 pickups.

Ford’s Technical Response:

• Issue technical service bulletins
• Provide diagnostic procedures
• Recommend suggested repairs
• Address concerns of vehicle owners
• Continue to monitor oil consumption

One of the most prominent service bulletins involves the diagnosis and suggested repair procedures for the oil consumption issues. According to the plaintiffs, this shows that Ford is fully aware of the concerns, and is taking minimal measures to address them. Many owners are also arguing that the recommended software update doesn’t fix the issues that come with faulty piston rings.

According to the service bulletin, many dealerships have been advised to update the powertrain control modules in an effort to reduce manifold vacuum during deceleration in 5.0L Coyote V8 equipped vehicles. Many of the owners are arguing that doing this doesn’t address the actual mechanical defect that’s causing the issues in the first place. The updates recommended by Ford may reduce the severity of the symptoms, but many believe it fails to address the root of the problem.

8. Ongoing Legal Disputes

Due to the sheer number of similar complaints, multiple class action lawsuits have been filed against Ford Motor Company. The owners who filed a complaint are accusing Ford of breaching the express warranty, committing fraud, and violating various consumer protection laws. These are all serious allegations, and have prompted many of the affected owners to seek legal action against the manufacturer in question.

Legal Action & Discovery:

• File class action lawsuits
• Challenge warranty compliance
• Address consumer protection violations
• Continue legal discovery process
• Gather additional pieces of evidence

Many of the class action lawsuits that have been filed have been grouped together under the case of Bryan et al v. Ford Motor Company. The case was filed on August 28, 2025, in the United States District Court for the Eastern District of Michigan. It has since drawn a fair amount of attention, as many owners have similar concerns about the vehicles that they purchased.

As of early 2026, the case continues to make its way through the court system. Ford has been asking for the dismissal of the case, while the defense attorneys continue to argue that it’s a valid breach of warranty claim. The court has allowed for discovery to take place, which has seen both sides requesting information and evidence to further support their respective cases. Ford’s internal development and testing of the plasma cylinder liner technology have also become the subject of further debate, and both sides are expected to present additional evidence before the case goes to trial.

9. Financial Concerns for Affected Owners

The oil consumption issues can also come with a price tag for the owners who have to address them. Due to the nature of the reported defect, many owners are having to pay for extensive repairs to their vehicles. Some are even reporting that they may have to replace the entire engine if the issue isn’t resolved, which can quickly become very costly. Many of the concerns are arising due to the engine’s inability to retain the engine oil, and the high cost of the repairs are a major concern for many of the owners who are affected.

Financial Liability:

• Increase potential repair costs
• Assess expenses for engine replacement
• Address concerns of vehicle depreciation
• Evaluate cost of continued maintenance
• Create financial concerns for owners

If many owners have to completely replace the failing engine, it could become extremely expensive to do so, especially if the vehicle is already out of warranty. Many owners who have filed a complaint are reporting that a full engine replacement, such as the replacement of the 5.0L V8, can easily cost anywhere between 8k-12k, depending on the type of engine chosen. Due to the complexity of the repair, the cost of replacing the piston rings or other affected parts could also be very high due to the amount of labor involved.

Many owners are also concerned that the issues may also affect the resale value of their vehicles. With the number of complaints that continue to surface, the number of potential buyers may also decrease. Many are concerned that the reputation of the vehicle may be negatively impacted in the future, which could make selling or trading in their vehicles even more expensive down the line.

10. Protecting Your Rights as an Owner

Owners who suspect that the oil consumption issues may be abnormal should do everything they can to document their concerns. This can help if the issue needs to be addressed by an official mechanic, and can also be used as evidence in the event that a settlement is reached in the future. In order to properly document the issues, it’s important to keep track of every addition of oil and when it was added to the engine.

Documentation Checklist:

• Keep track of every oil addition
• Save any receipts for oil purchases
• Request diagnostic testing from dealerships
• Save all repair and maintenance records
• Keep track of communication with Ford

By keeping a log of every time the oil has to be added to the engine, it can show how frequently the oil is being consumed, which may help if the condition needs to be diagnosed and repaired. Owners should also save any receipts they have for oil purchases and service. This can help reduce the amount of expenses that may have to be paid if the issue has to be resolved through legal means.

Owners should also make sure to bring these concerns to an official Ford dealership and have them inspected for oil consumption issues. Most dealerships will be able to conduct the appropriate tests to determine the rate of oil consumption once the vehicle has been driven for a certain amount of time. Repair records and service receipts should be kept in case a settlement is reached, as should any communication that takes place with Ford. By doing so, owners can be fully prepared in the event that their concerns are officially recognized and a settlement is reached.

If the court approves a settlement, no one should have to hire an independent lawyer in order to file a claim. There should be a process where owners can submit the required documentation, such as evidence of purchase, repair, and service records, and any other documentation that may be necessary. Keeping these documents organized can also help make the process easier for Ford, as well as helping owners to present a stronger foundation for their claim.