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The Tesla Effect: Why EVs will take a big bite out of oil demand
The newly defined “Tesla Effect” is producing remarkable consequences. Tesla electric vehicles (EVs) have changed the way that people all over the globe now think about transportation, the place of zero tailpipe emissions, and an accelerated agenda for sustainable energy. One “Tesla Effect” is that the International Energy Agency last month forecast that global gasoline demand has all but peaked because of more efficient cars and the spread of EVs.
Thank you, Tesla.
As a small Silicon Valley startup, Tesla Motors began with a line of luxury electric sports cars that could reliably produce more than 200 miles on a single charge. Due to the wide acclaim and demand it received for its cars, Tesla was able to repay a 2010 loan from the U.S. Department of Energy a full nine years early. Their manufacturing facility in California became the largest auto industry employer in California, and Tesla was soon spreading its mission around the globe. It has achieved success beyond any expectations — except that, perhaps, of CEO Elon Musk — and has prompted other major automakers to accelerate work on their own electric vehicles in order to maintain currency in the market.
And now, while EVs represent less than 1 percent of total vehicle sales, they are predicted to soar in popularity around 2025. That’s when many governments around the globe, including Athens, Madrid, Mexico City, and Paris, have pledged to phase out diesel vehicles in a battle against pollution. These promises, known as “intended nationally determined contributions,” will have significant consequences of their own over the decade that will follow. By 2035, EVs may remove 1 million to 2 million barrels a day of oil demand from the market.
“Anything that reduces the demand for transportation has an impact on the oil market,” Alan Gelder, vice president of refining, chemicals, and oils markets at Wood Mackenzie, said in an interview in London. “The question is how big is it going to be and what’s the time frame.”
Model S and Model X vehicles off the production line seen via aerial drone shot of Tesla factory
Electric cars are displacing about 50,000 barrels a day of demand now, according to the oil industry consultant, Wood Mackenzie, which promotes itself to potential customers as “embedded in the industry, with more than four decades building relationships, improving performance and keeping you ahead of the competition.” To placate nervous clients, Wood Mackenzie says that it does expect total oil demand to keep growing for decades, driven by shipping, trucking, aviation, and petrochemical industries. That’s more conservative than Bloomberg New Energy Finance’s forecast for EVs to displace about 8 million barrels a day of demand by 2035.
Tesla alone won’t be able to supply enough EVs if demand really takes off, Gelder said. Major automakers including Volkswagen AG and Ford Motor Co. will need to produce them on a larger scale. “At the moment they can’t, and changing manufacturing lines takes time.”
Gelder continued his argument by stating that regulation and government subsidies alone won’t be enough to spark a boom in EVs. Consumers, he insisted, will need to believe that EVs are preferred for a variety of reasons. “If there’s a technology revolution, so battery technology gets cheaper and EVs don’t need a subsidy, then it comes down to consumer preference. If the consumers like something, it’ll switch far faster.”
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If the global response to Tesla is any indication, EVs are not only here to stay: they’ll be the preferred individual mode of transportation of the future.
Tesla has started to deploy the 2026 Summer Update to owners across its fleet, and among the biggest changes are improvements to Navigation, a new startup animation for the Model 3 and Model Y, Caraoke scoring, and new capabilities for Grok.
As the update has started making its way to some cars, we can now see a few of the features operating in real-time. We will show you what some of the new features look like in this article, along with some additional details on what changed.
Not all of the new features in the 2026 Summer Update have quite made an appearance, but some of them have, so we’ll show those here:
New Animation Screen for 3/Y
Tesla is rolling out a new startup animation for Tesla Model 3 and Model Y owners. This is present in Launch Edition and Performance Model 3 and Model Y, but other trim levels do not have anything like this.
The new animation screen on Model 3/Y with the 2026 Summer Update
Apparently color will also be customizable: pic.twitter.com/wSdwggtG3S
— TESLARATI (@Teslarati) July 27, 2026
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Owners can adjust the color associated with the startup animation to suit their preferences. It is a surprise that more automakers do not focus on this animation for their vehicles; it can be a great first impression piece and make the car immediately feel more luxurious.
Tesla has included this on more premium trims, but it is nice to see it on the Model 3 and Model Y.
Grok Improvements
Grok can now adjust more things in the car outside of the Navigation system. Now, drivers can adjust anything from climate to driving settings by simply speaking to the AI assistant in the car:
@Tesla‘s AI assistant (Grok) with its new vehicle commands in action.
Set the climate, your destination and vehicle settings all in one go! pic.twitter.com/0bBTqaAk6G
— Not a Tesla App (@NotATeslaApp) July 28, 2026
You don’t even have to push a button, either. Instead, you can just say “Hey, Grok,” if you have it enabled. That feature rolled out with the 2026 Spring Update just a few months back.
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This is a great feature, especially pertinent for the Robotaxi platform, as there will be no buttons inside the Cybercab when it eventually starts giving rides to the public. It also broadens Grok’s capabilities, which were relatively limited in terms of vehicle setting adjustments beforehand.
Tesla briefly offered one Robotaxi part in its Parts Catalog for your personal car, only to remove it just a short time after it was first noticed.
Tesla’s Robotaxi camera washer apparatus was briefly available for purchase on the company’s Online Parts Catalog. The camera washer was first noticed on Model Y Robotaxi vehicles about six months ago in Austin.
🚨 Tesla looks to have installed Camera Washers on the side repeater cameras on Robotaxis in Austin
pic.twitter.com/xemRtDtlRR— TESLARATI (@Teslarati) January 23, 2026
First noticed by Not a Tesla App, the Camera Washer entries appeared for the new “Juniper” Model Y under a category called “Halo,” which has also now disappeared. Interestingly, Halo probably is related to Tesla’s internal “Project Halo,” which was a project that aimed to retrofit customer-owned Model Ys into functional Robotaxis.
This hardware addition would likely be required for the vehicle to operate as a Robotaxi, as the Camera Washer seems to be a non-negotiable part of the vision-based system Tesla utilizes for self-driving efforts.
However, this part has since been removed and is no longer visible on the EPC.
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Now the true question lingers: Why would Tesla add this Camera Washer to the Model Y parts catalog? Is it planning to make it available for owners to utilize on their own cars for personal use, or will it become a prerequisite for Robotaxi operation in customer-owned cars?
While discussing the upgrade options for Hardware 3 vehicles during the Q1 Earnings Call, Tesla CEO Elon Musk had said that the company could establish small, satellite shops that would upgrade cameras and self-driving computers. Perhaps this same strategy could be utilized for vehicles that want to be included in Robotaxi but do not have the correct hardware.
AI4 is currently represented as capable of unsupervised self-driving, and the same was said about HW3 at one point, only for Tesla to admit last quarter that it would, unfortunately, not be possible. Perhaps AI4 vehicles might need this camera washer as a prerequisite, just as HW3 cars will need that camera and computer upgrade.
This could be the first hint of that’s where we are headed.
Tesla has started rolling out a broader change to the ride experience for its Robotaxi fleet by silencing turn signals, but the change is certainly polarizing.
Tesla has generally made it clear that its purpose-built ride-hailing platform, Robotaxi, will cater to the rider in nearly every way possible. This includes having climate preferences, music, and other personal settings loaded up in the car as the rider enters.
But Tesla is taking it a step further by muting turn signal chimes altogether, a change that appears to be a way to make the ride more peaceful:
Tesla has finally turned off the blinker/turn signal noises in their Model Y Robotaxis.
This is a small update, but will definitely be noticeable for riders. It didn’t really make much sense to leave the turn signal sound on when it’s Unsupervised. pic.twitter.com/ITwx60PAMO
— Sawyer Merritt (@SawyerMerritt) July 27, 2026
However, there are a handful of people who are not thrilled about this change. Turn signals are a conditioned part of the human mind for those who ride in a car regularly.
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Taking a turn without one feels strange and odd, and not hearing it click while activated could set off some alarms for riders, who might use the noise as confirmation that other drivers know of their intention to turn.
I kind of like it being on, threw me off when riding with Zoox who has had it disabled
— Dan Burkland (@DBurkland) July 27, 2026
Turn signal noises are still audible in customer cars, so if you use FSD in your personal vehicle, you will still hear the turn signal.
The move is certainly one that is unique, but not one that separates it from other ride-sharing services. In a normal car, the clicking sound confirms to the driver that the blinker is active. In a fully driverless Robotaxi, that feedback serves no purpose for passengers, other than peace of mind.
Tesla Summer Update begins rolling out: a look at the new features
Tesla briefly offered this Robotaxi part for your personal car
