F150 oil burning defect

Ford F-150 Oil Consumption Lawsuit – What You Need To Know

In January 2021, a class action lawsuit was filed against Ford on behalf of owners and lessees of 2018-2020 Ford F-150 vehicles containing the 5.0L Coyote engines. According to the lawsuit and law firms involved, a recent investigation revealed these F-150 models may be prone to excessive engine oil consumption. This defect allegedly causes the vehicles to burn through engine oil at a faster rate and forces the owner or lessee to replenish the engine oil in their vehicle more frequently than normal. It may also result in increased emissions and reduced fuel efficiency. In some instances, when consumers brought their vehicles to a Ford dealership and complained of engine oil consumption, they have been told the issue is normal or that the owner is at fault and have been denied coverage for the repair under the new vehicle warranty.

Why are these vehicles consuming engine oil?

According to the class action lawsuit, the F-150 Coyote engines allow engine oil to pass by the piston rings and into the combustion chambers where it is burned off during the combustion cycle, thereby reducing the amount of engine oil in the engines.

In addition to the alleged issues with the piston rings, the lawsuit alleges the oil consumption issues are compounded by an inadequate positive crankshaft ventilation (PCV) system.

Does Ford have a fix?

In December 2019, Ford issued a fourth technical service bulletin regarding the 2018-2019 F-150 vehicles with Coyote engines (“TSB 19-2365”). According to the lawsuit, this TSB attributed the excessive oil consumption to the possibility of high intake manifold vacuum during deceleration fuel shut off (DFSO) resulting in oil being pulled into the combustion chamber. The proposed correction under the TSB includes reprogramming of powertrain control module (“PCM”), installing a new engine oil level indicator (a/k/a “dipstick”) and changing the engine oil and oil filter.

Most notably, the revised dipstick “uses a wider 1.9 liter (2 quart) normal operating range.” According to the lawsuit, rather than adequately repair the Oil Consumption Defect, Ford simply lowered the minimum fill level on the revised dipstick to mask the oil consumption problem in the Class Vehicles. The complaint states that this change means that a dipstick reading that was once at or below the minimum fill line, previously requiring an engine replacement, and perhaps caused customers to become alarmed or concerned with excessive oil consumption, is now considered normal and within Ford’s acceptable parameters. The case claims that this change only sought to save Ford the cost of repairs and did nothing to correct the Oil Consumption Defect.

The Ford F-150 Coyote oil consumption lawsuit is captioned Lyman, et al., v. Ford Motor Company and was filed in the U.S. District Court for the Eastern District of Michigan.

Submit your Ford F-150 Complaint

Send me an email when this page has been updated


  1. Avatar
    MikeAugust 11, 2021

    I believe my f150 5.0L has this happening. The dealership has already swapped my dip stick and performed pcm update ..I now have a popping noise inside motor area kinda like pop corn or something.. what can be done ? I’m wondering if I’ll be stuck with costly repairs after my warranty is up. 50k now . 100k warranty.. I’ve reported issue as early as 32k

    1. Avatar
      ChristopherAugust 11, 2021

      Sounds like you are having some issues, similar to others with these engines. To join the class action lawsuit, please submit a detailed complaint here:

  2. Avatar
    mikeSeptember 23, 2021

    dealer is playing stupid problem is when i drop truck off they dont have loaner car or its not a truck which i need for work .joke will be on them as lemon law in nj is 2 times to dealer for same problem , becomes a case they can not win keep your paper work call lawyer they have to take truck back and reimburse cost of vehicle . good luck they can not fix oil loss problem without installing new engine .

  3. Avatar
    DaveDecember 6, 2021

    This problem started only after Ford mfg blocks with lazer welded cylinder liners, the welding rod material is fuzed to the aluminum block then bored/honed resulting in very thin liners, this cannot be a good method of cylinder liners, I think this is the real cause of excessive oil consumption. The Lexus LS500 also has welded cylinder liners now and are experiencing same oil consumption, 1000 miles and one quart loss, this is a lot of oil consumption between oil changes. The new Tundra also has same type cylinder liners, welded in then bored to extremely thin thickness. I predict we will see the same excessive oil consumption in new tundras within 6 months en masse. The old tried and true thick cylinder cast iron liners press fit, 2017 coyote and back had no troubles with excessive oil consumption. Be interesting to see how the new tundra “welded in” valve seats last, versus the old tried and true press fit hard seats.


Leave a Reply

Your email address will not be published. Required fields are marked *

Scroll to top