In the past few days, many media sources have claimed that Tesla Cybertruck owners have been starting to see their stainless steel electric vehicles (EVs) begin to rust, though some suggest that it may not be as much of a problem as has been reported.
Justin Demaree, host of the YouTube channel Bearded Tesla Guy, shared a video on Friday addressing the claims of rust on the Cybertruck’s exterior, along with showing some of the best ways to get any oxidation off of the stainless steel pickup. The oxidation, which is super tiny and difficult to even see in the video, comes in small orange specks, most likely being “rust dust” or “rail dust.” Fortunately, it’s only surface contamination and can easily be cleaned with the right solution.
This can happen anywhere in a factory where metal polishing or grinding happens, such as in factories or near railroad tracks, as the grinding of metals causes microparticles to be dispersed.
The video was also shared on X by Tesla’s lead Cybertruck engineer, Wes Morrill, who points out that Bar Keeper’s Friend is a great solution for loosening the surface oxidation, letting the user wipe it right off. He also calls Justin’s video “good myth busting,” adding in a follow-up comment that Cybertruck owners can literally buff the metal to get any surface marks out, even if they’re deeply embedded in the stainless steel.
Good myth busting. Stainless is reactive and free iron that sits on it will rust. It's surface contamination only and can be cleaned off easily. Bar Keeper's Friend used here works well, citrisurf77 can also loosen the deposit and simply wipe it off. If anything stubborn use a… https://t.co/HD3Xeo0inH
— Wes (@wmorrill3) February 16, 2024
CEO Elon Musk responded to Morrill’s post about the issue, simply saying “yeah,” to affirm Justin and Wes’s claims.
“The benefit of Cybertruck is you can remove a scratch by buffing the metal even if it’s super deep, with enough effort you can remove it and have a factory finish,” Morrill added later in the thread. “Typical clear coat is at most 50 microns thick so a scratch deeper than that cannot be fixed without repainting.”
The engineer also shared a photo of another dirty car in a parking lot he was in, showing that, if you look closely, the vehicle included many of the same small oxidation spots that are being reported to be exclusive to the Cybertruck because of its steel.
You can watch the full Bearded Tesla video below, with Justin detailing the Cybertruck oxidation issue and showing the use of Bar Keeper’s Friend and two other glass cleaners to wipe away rust dust and fingerprints.
Similarly, Tesla Design Chief Franz von Holzhausen recently talked about scratch removal on the Cybertruck on a podcast last January, along with how long it took the automaker to develop the durable stainless steel and its finish. Those who want to remove scratches or other surface issues on the exterior, as Morrill recently echoed, can simply buff it out.
“We spent a lot of time developing a finish that can be — the stainless is incredibly hard — so if in the event that there is a scratch, we do have a process that you could yourself basically buff it and remove the scratch as well and return to the basic finish that’s on the stainless,” the design executive said during the Ride the Lightning podcast.
“It’s a different process. It’s not the same as the brush finish on a refrigerator or a DeLorean or something. There is an intentional finish that we apply to it. And it is able to be cured or fixed, or in the event that you know it’s going to be something pretty intense that does actually scratch the surface.”
Tesla will help you get your Cybertruck faster, but at a cost
Have you had experiences with oxidation or “rust dust” on your Cybertruck? Let me know at zach@teslarati.com, find me on X at @zacharyvisconti, or send us news tips at tips@teslarati.com.
News
Tesla confirms that it finally solved its 4680 battery’s dry cathode process
The suggests the company has finally resolved one of the most challenging aspects of its next-generation battery cells.
Tesla has confirmed that it is now producing both the anode and cathode of its 4680 battery cells using a dry-electrode process, marking a key breakthrough in a technology the company has been working to industrialize for years.
The update, disclosed in Tesla’s Q4 and FY 2025 update letter, suggests the company has finally resolved one of the most challenging aspects of its next-generation battery cells.
Dry cathode 4680 cells
In its Q4 and FY 2025 update letter, Tesla stated that it is now producing 4680 cells whose anode and cathode were produced during the dry electrode process. The confirmation addresses long-standing questions around whether Tesla could bring its dry cathode process into sustained production.
The disclosure was highlighted on X by Bonne Eggleston, Tesla’s Vice President of 4680 batteries, who wrote that “both electrodes use our dry process.”
Tesla first introduced the dry-electrode concept during its Battery Day presentation in 2020, pitching it as a way to simplify production, reduce factory footprint, lower costs, and improve energy density. While Tesla has been producing 4680 cells for some time, the company had previously relied on more conventional approaches for parts of the process, leading to questions about whether a full dry-electrode process could even be achieved.
4680 packs for Model Y
Tesla also revealed in its Q4 and FY 2025 Update Letter that it has begun producing battery packs for certain Model Y vehicles using its in-house 4680 cells. As per Tesla:
“We have begun to produce battery packs for certain Model Ys with our 4680 cells, unlocking an additional vector of supply to help navigate increasingly complex supply chain challenges caused by trade barriers and tariff risks.”
The timing is notable. With Tesla preparing to wind down Model S and Model X production, the Model Y and Model 3 are expected to account for an even larger share of the company’s vehicle output. Ensuring that the Model Y can be equipped with domestically produced 4680 battery packs gives Tesla greater flexibility to maintain production volumes in the United States, even as global battery supply chains face increasing complexity.
Elon Musk
Tesla Giga Texas to feature massive Optimus V4 production line
This suggests that while the first Optimus line will be set up in the Fremont Factory, the real ramp of Optimus’ production will happen in Giga Texas.
Tesla will build Optimus 4 in Giga Texas, and its production line will be massive. This was, at least, as per recent comments by CEO Elon Musk on social media platform X.
Optimus 4 production
In response to a post on X which expressed surprise that Optimus will be produced in California, Musk stated that “Optimus 4 will be built in Texas at much higher volume.” This suggests that while the first Optimus line will be set up in the Fremont Factory, and while the line itself will be capable of producing 1 million humanoid robots per year, the real ramp of Optimus’ production will happen in Giga Texas.
This was not the first time that Elon Musk shared his plans for Optimus’ production at Gigafactory Texas. During the 2025 Annual Shareholder Meeting, he stated that Giga Texas’ Optimus line will produce 10 million units of the humanoid robot per year. He did not, however, state at the time that Giga Texas would produce Optimus V4.
“So we’re going to launch on the fastest production ramp of any product of any large complex manufactured product ever, starting with building a one-million-unit production line in Fremont. And that’s Line one. And then a ten million unit per year production line here,” Musk stated.
How big Optimus could become
During Tesla’s Q4 and FY 2025 earnings call, Musk offered additional context on the potential of Optimus. While he stated that the ramp of Optimus’ production will be deliberate at first, the humanoid robot itself will have the potential to change the world.
“Optimus really will be a general-purpose robot that can learn by observing human behavior. You can demonstrate a task or verbally describe a task or show it a task. Even show it a video, it will be able to do that task. It’s going to be a very capable robot. I think long-term Optimus will have a very significant impact on the US GDP.
“It will actually move the needle on US GDP significantly. In conclusion, there are still many who doubt our ambitions for creating amazing abundance. We are confident it can be done, and we are making the right moves technologically to ensure that it does. Tesla, Inc. has never been a company to shy away from solving the hardest problems,” Musk stated.
Elon Musk
Rumored SpaceX-xAI merger gets apparent confirmation from Elon Musk
The comment follows reports that the rocket maker is weighing a transaction that could further consolidate Musk’s space and AI ventures.
Elon Musk appeared to confirm reports that SpaceX is exploring a potential merger with artificial intelligence startup xAI by responding positively to a post about the reported transaction on X.
Musk’s comment follows reports that the rocket maker is weighing a transaction that could further consolidate his space and AI ventures.
SpaceX xAI merger
As per a recent Reuters report, SpaceX has held discussions about merging with xAI, with the proposed structure potentially involving an exchange of xAI shares for SpaceX stock. The value, structure, and timing of any deal have not been finalized, and no agreement has been signed.
Musk appeared to acknowledge the report in a brief reply on X, responding “Yeah” to a post that described SpaceX as a future “Dyson Swarm company.” The comment references a Dyson Swarm, a sci-fi megastructure concept that consists of a massive network of satellites or structures that orbit a celestial body to harness its energy.
Reuters noted that two entities were formed in Nevada on January 21 to facilitate a potential transaction for the possible SpaceX-xAI merger. The discussions remain ongoing, and a transaction is not yet guaranteed, however.
AI and space infrastructure
A potential merger with xAI would align with Musk’s stated strategy of integrating artificial intelligence development with space-based systems. Musk has previously said that space-based infrastructure could support large-scale computing by leveraging continuous solar energy, an approach he has framed as economically scalable over time.
xAI already has operational ties to Musk’s other companies. The startup develops Grok, a large language model that holds a U.S. Department of Defense contract valued at up to $200 million. AI also plays a central role in SpaceX’s Starlink and Starshield satellite programs, which rely on automation and machine learning for network management and national security applications.
Musk has previously consolidated his businesses through share-based transactions, including Tesla’s acquisition of SolarCity in 2016 and xAI’s acquisition of X last year. Bloomberg has also claimed that Musk is considering a merger between SpaceX and Tesla in the future.
Tesla confirms that it finally solved its 4680 battery’s dry cathode process
Tesla Giga Texas to feature massive Optimus V4 production line
