Posted on 05/18/2026 8:13:49 PM PDT by yesthatjallen
A new Toyota dealer bulletin is starting to spread online, and it’s raising a question most enthusiasts never expected to ask in 2026: why is Toyota suddenly telling dealers to substitute engine oil? The internal document (2026-013), dated April 30, 2026, warns Toyota Parts and Service Managers about temporary supply issues involving Toyota Genuine Motor Oil 0W-8 and 0W-16. According to the bulletin, Toyota and ExxonMobil “may experience challenges in fulfilling demand” due to “production and logistics constraints within the global petrochemical supply chain.” And honestly, the timing is hard to ignore.
Toyota Is Reportedly Facing A Supply Issue With Ultra-Thin Oils
Toyota never directly mentions the Iran conflict, but global petrochemical markets have already been feeling pressure from escalating tensions and shipping concerns tied to the Strait of Hormuz. The timing also comes as reports continue surfacing about disruption and damage tied to major petrochemical infrastructure in the region, including concerns surrounding Qatar’s massive Pearl GTL refinery operation. When a major automaker suddenly starts issuing oil substitution guidelines for some of its newest ultra-thin lubricants, it doesn’t take much to connect the dots.
SNIP
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Not good news for anyone relying on mid-range vehicles like Toyota. They are the bulk of commuters, in most cities.
I thought WE had plenty of oil, it was just the Asian countries and parts of Europe that had problems with supply................
Nissan put the bulletin out too. I’m sure others have.
They are asking to switch to a cheaper supplier. Yes, this is telling but not for the reasons we think it is.
This article clarifies why: https://autos.yahoo.com/ownership/articles/oil-supercars-run-dry-month-222500663.html
Earlier in the week, the Independent Lubricant Manufacturers Association (ILMA) sent a two-page document to customers outlining the causes of the “2026 Global Base Oil Supply Crisis.” The literature focused on Group III base oil product, which is the middle-of-the road of refined base oils. It and Group IV products are the ones utilized to create the performance-minded motor oils used for supercars and luxury vehicles.
Group III crude is processed by three refineries in Qatar, UAE, and Bahrain. Qatar’s refinery is currently offline due to damage it sustained in March (take a guess as to why), and the other two are unable to export as the ports those locales would utilize are in the compromised part of the Strait of Hormuz.
So, “Plan B” for Group III production would go to South Korean facilities. But, those refineries pivoted from base oil to feedstock recently to make fuel as it was struggling to obtain crude oil product from the Middle East. The final backup for Group III production is to utilize Group II crude (a lesser refined crude) to make base oils, but that’s been utilized for diesel production due to shortages.
The ILMA’s CEO Holly Alfano told CNBC in an email, “Altogether, these dynamics are placing nearly three-quarters of US Group III imports under stress, while also eliminating the industry’s ability to substitute with Group II base oils.”
It’s a perfect storm.
Qatar is the world’s largest source of vis breaker and hydro cracker blend stocks all of these water thin oils are largely H2 cracked stocks. The GTL stocks as in gas to liquids are also from Qatar mostly. Exxon Mobil has local
Baytown, Texas, USA: A major hub for Group II and II+ base stocks (including EHC 45, EHC 65, and EHC 120).
Those are not synthetics and you won’t get down to 8 or 16 grade without synthetic base stocks. Group IV or V.
0W-8 is kind of a scam anyway. Toyota does it to meet EPA mileage standards, not because it is best for the engine. You are certainly better off with a heavier oil for durability and protection.
Quite interesting, what a guy can learn here...
I seem to remember the reason Toyota went to 0W oil was because of consumer complaints about “sludge.”
My suspicion then was the “sludge” was not from any defect in the oil, but a defect in particular consumers’ oil-changing discipline.
I don’t believe what this “leaked memo” says.
The number one driver of oil prices is fear. And they know it.
Trump’s enemies want oil prices to hurt him in the election.
How obvious can they get.
Problem is group III oils are all of the synthetic 0w-(20,30,40),5w-(20,30,40),10w-(30,40)
After Castrol won it’s suit against Mobil one no synthetic in the USA is group IV oil based none of the majors are they all went to via broken group III stocks because they are 1/3 the cost of PAO group IV or group V esters.
Pro tip bobistheoilguy endless oil topics , chemical analysis from actual samples compared to the MSDS formula break downs.
Group II,II+ are conventional oils they work just with shorter change intervals and well turbos are screwed. You need synthetics heat and sludge tolerance for turbos and GDI engines too the high compression ones for sure. People gonna be walking or doing long 10000+ mile changes in a month or so.
I’ve used 5w-30 Mobil 1 in my F-150 instead of the recommended 5w-20 since it was new for that very reason. Here in the SW United States, you need higher viscosity oil because of the heat.
Did you read the link above no you didn’t.
There is three main refineries that do group III oil base all of them in the Persian Gulf, why? Because they have the ultra cheap natural gas to make the hydrogen via steam methane reformation to hydrocrack paraffins into group III oils. The largest is in Qatar that stock is trapped now. It’s not some grand conspiracy it’s the USA lack of spine to force the straight open by overwhelming military force and yes this means Navy ships will get hit by enemy fire that’s how war works. We got them harder than they hit us. But they ran out the WPA clock and now have to make political theater of a cease fire.
Its the CAFE standards behind it all.
To get the mileage they shrunk the engines to even lighter weights but to keep horsepower tightened tolerances and added turbos.
Tighter tolerances demanded lighter oils. Reduced cooling and lubricating capability.
However every change above makes the engine run hotter, so the engines will wear out faster.
“Not good news for anyone relying on mid-range vehicles like Toyota. They are the bulk of commuters, in most cities.”
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Not good news for anybody using a newer gas or diesel engine. Most of them seem to use very low viscosity oils, down at the 8-12 or 14 mentioned here. I don’t even know what the substitute for my diesel oil is, since Volvo-Penta requires you to use their oil for the full warranty.
https://www.reddit.com/r/Shortages/comments/1tfvlkq/motor_oil_is_the_next_shortage_and_its_just_as/
Perfect analysis.
“Open App
Return to Search Results
Go to Shortages
r/Shortages
1d ago
alemorg
Motor Oil Is The Next Shortage And It’s Just As Bad As Higher Gas Prices
The crude oil shortage is the main headline. Gasoline, diesel, jet fuel. But there is a downstream supply chain that is about to hit most car owners in America.
The AutoZone Memo
A leaked internal AutoZone memo is circulating, warning that the U.S. is facing “the largest supply shortage of lubricating fluids in the modern history of America” with “average available supply in this product category to drop by 40%.”
Is the memo authentic? AutoZone corporate has not confirmed it. Carscoops reached out and received no reply as of May 15. But the data inside it is consistent with what multiple independent sources are reporting: JobbersWorld (the lubricant industry’s primary trade publication), the Independent Lubricant Manufacturers Association (ILMA), ICIS, Shell’s own public statements, and confirmed internal memos from Nissan and Toyota.
Nissan: 45% Allocation Cut, Confirmed
Nissan drafted an internal bulletin obtained by The Drive and confirmed as authentic by a Nissan spokesperson. The bulletin laid out a hard number: allocation of Nissan Genuine Oil (including Mobil and Mobil 1 variants) capped at 55% of prior-year volumes. A 45% cut. Effective May 1, 2026.
The bulletin includes draft customer talking points. The “why” section states the shortage affects all automakers, not just Nissan. From The Drive’s reporting, the full text reads:
“We are writing to provide an important update regarding the availability of engine oil products across the Nissan network in the U.S. Due to ongoing global supply constraints impacting key raw materials and refining inputs due to the Middle East Conflict, we have been advised of reduced production capacity for most lubricant products. As a result, Nissan will be implementing the following adjustments, effective May 1, 2026. Allocation of Nissan Genuine Oil (including Mobil and Mobil 1 variants) will be constrained and managed at a 55% YoY level based on gallons purchased.”
The Nissan spokesperson told The Drive that while the bulletin is real, it was never distributed to Nissan’s dealer network. The May 1 effective date has come and gone without the memo being sent.
Source: The Drive, “Second Automaker Sounds Alarm Over Dwindling Motor Oil Stock [UPDATE]” (May 14, 2026)
Toyota: Substitution Guidelines, Unconfirmed
The Drive reported on May 14 that Toyota may have sent a service bulletin warning of a shortage of 0W-8 and 0W-16 oils. The bulletin, allegedly from Toyota and its supplier ExxonMobil, instructs dealers to use substitution guidelines, substituting heavier oil weights one day per week for 0W-8 and one day every other week for 0W-16.
Toyota has not confirmed the bulletin’s authenticity. The Drive reached out to a Toyota spokesperson; as of publication time, Toyota had not responded. Based on comparisons to other known Toyota bulletins, The Drive assessed the document appears genuine. The substitutions are allowed for one service interval only, not a permanent fix.
Two of the world’s largest automakers drafting rationing plans within days of each other is not a coincidence. It is a supply chain signal.
Source: The Drive, “Alleged Toyota Service Bulletin Warns of Looming Motor Oil Shortage” (May 14, 2026)
Why Motor Oil Specifically?
Motor oil is not pumped out of the ground and poured into a bottle. Modern synthetic passenger car motor oils (the kind required by nearly every car built in the last 15 years) require high purity Group III base oils. Group III base oils are the raw ingredient that makes synthetic oil synthetic.
The United States is a net importer of Group III base oils. Domestic production covers only 30% to 50% of demand.
JobbersWorld reported in March 2026, using U.S. Census Bureau and Global Trade Tracker data, that Middle Eastern sources (primarily Qatar, the UAE, and Bahrain) supplied more than 40% of total U.S. Group III supply for three consecutive years. In January 2026, that share climbed to approximately 55%.
Virtually all of these volumes must physically transit the Strait of Hormuz. The Strait has been functionally closed to commercial transit since February 28.
The AutoZone memo’s 40% figure is not an estimate. It is a direct reflection of losing the specific import channel the U.S. depends on for modern synthetic oil.
The Pearl GTL Strike
Shell’s Pearl gas to liquids (GTL) plant in Qatar’s Ras Laffan Industrial City was struck by Iranian missiles on March 19, 2026. Shell confirmed the damage in a public statement: “no damage to train one and an initial assessment of around one year for full repair of train two.”
Pearl GTL is one of the world’s largest sources of premium Group III+ base oils, with the capacity to produce about 30,000 barrels of base oil per day, enough to fill 225 million cars per year, according to Shell’s own website. One of two production trains was damaged. Shell’s own estimate: approximately one year for full repair.
This is the plant that produces the base oil for Pennzoil’s synthetic line made from natural gas. It produces base oil for Mobil 1 formulations. It is offline, and it is not coming back until mid-2027 at best.
Sources: Shell Plc public statement (March 2026); shell.com.qa, “GTL Products”
What “Synthetic” Actually Means
A dirty secret of the motor oil industry: in the United States, “synthetic” is a marketing term, not a chemical classification. Most oils sold as “full synthetic” are Group III base stocks refined from crude oil. ExxonMobil itself states: “There is no generally accepted definition of a synthetic base stock, or synthetic base oil. In the U.S., the government considers ‘synthetic’ to be a marketing term.” And: “Most Group III base stocks are refined from crude oil streams.”
This matters because if your car requires synthetic oil (and most modern turbocharged engines do), you cannot just substitute conventional. And the crude refining chain that produces Group III base oils is the same chain being squeezed by the Strait of Hormuz closure.
Not all Group III is interchangeable either. Group III+ grades used in 0W-20 and 0W-16 formulations (the weights specified by most new cars) have even fewer alternative sources. JobbersWorld’s April 29 analysis identified these low-viscosity products as the single biggest point of exposure.
Source: ExxonMobil base stocks FAQ (via The Drive, May 14, 2026)
The ILMA / GM Dexos Fight
The Independent Lubricant Manufacturers Association formally requested that General Motors grant temporary flexibility under its dexos engine oil licensing program so blenders could use alternative base oils during the shortage. GM refused.
GM’s position: no enforcement pause. License terminations will continue. Blenders have approximately one month of forward inventory. After that, companies without approved alternatives face “serious commercial and licensing risk, including potential termination.”
Translation: the blenders who make the oil that goes into GM vehicles are being told by GM that if they cannot source Group III base oil to the exact dexos specification, they lose their license and cannot sell dexos-approved oil. Meanwhile, the Group III base oil physically does not exist on the spot market.
ILMA CEO Holly Alfano, from the ILMA website (April 3, 2026): “ILMA appreciates GM’s response; however, we remain concerned by the OEM’s decision not to provide temporary enforcement flexibility under these extraordinary circumstances.”
Source: ILMA.org, “GM Responds to ILMA’s Dexos Licensing Relief Request” (April 3, 2026)
Current Market Conditions
From JobbersWorld, March 24, 2026, and confirmed by Axios on May 15, 2026:
Spot availability for Group III base oils has “largely disappeared.” Unless you have strong existing supply contracts, “you’re not going to find it.” Prices are escalating in what blenders describe as an “unstructured, less predictable manner.” Some estimates put Group III prices approaching $2.00 per gallon above pre-crisis levels.
ICIS global lead for base oils Amanda Hay, speaking to Axios on May 15: “Actual shortages are starting to appear” for some synthetic oil products. “Security of supply is the chief concern for industry players.”
Note: JobbersWorld is behind a paywall and cannot be independently accessed without a subscription. The Axios quotes were accessed on May 16, 2026 but cannot be re-verified in real time.
The Timeline: Worse Than Crude
Here is the critical distinction most people miss. Crude oil is a commodity. Group III base oils are a specialty refined product from specific plants.
JobbersWorld’s April 8 analysis: even if the Strait of Hormuz reopens tomorrow, Group III relief “may take much longer” than crude relief. The market will bifurcate. Group I and II (conventional oils, industrial lubricants) will see faster relief. Group III and Group III+ will remain tight and expensive for months after any geopolitical resolution.
Why? Because Pearl GTL is physically damaged and takes a year to repair. Because supply chains for specialty base oils do not just snap back when tankers start moving again. Because blenders carrying one month of inventory will take months to restock the entire distribution chain.
The lubricant industry’s traditional pricing playbook, built around predictable cost adjustments and long lag times, has broken. The market has shifted to what blenders describe as an “all-in” approach where simply securing supply is the dominant factor. Price is secondary.
What This Means For You
If you drive a modern car that requires synthetic oil (basically anything with a turbo, direct injection, or a 0W viscosity rating), here is where this lands:
Your next oil change is going to cost more. Possibly a lot more.
Your dealer or independent shop may not have your exact oil weight in stock. They may offer you an alternative that “meets spec” but was not what your engine was designed for.
If you are due for an oil change in the next month or two, do it now. The supply has not collapsed yet, but two automakers and the largest auto parts retailer in America are clearly preparing for exactly that.
This is not a “gas prices are high” problem. Gas prices can spike and then come back. Motor oil is a manufactured product from damaged and offline facilities with no short-term replacement. The timeline is months, not weeks.”
I have proof of what you said. Engine repairs from too thin of an oil. I’m using 10w30 synthetic now in the car. Good old 10w30
I bumped my truck up to 10w40 synthetic because It is floored for 20 minutes hauling a load up a steep mountain range.
Nissan sent out the kind of memo to all their dealers, worldwide, just a couple days ago. There’s also a report about it in Overdrive Magazine, one of the industry news outlets. Here’s an excerpt:
“Amanda Hay, global lead for base oils at Independent Commodity Intelligence Services, told Axios that Group III base oil prices have climbed to “more than $10/gallon,” historically high levels.
According to an ILMA memo, record high diesel prices have also pulled some motor oils off the market.
“Normally, blenders move to Group II for many products when Group III is short. But with diesel margins at 40-year highs, refiners” are focusing on turning out fuel rather than engine oils a ILMA memo read. “For the first time on record, Group II is trading at a discount to diesel — pulling it out of the market.”
For now, truckers, bear in mind that as commodity prices spike, they become a target for cargo theft. Maybe load up on a few gallons for your passenger cars, and look into oil sampling, analysis and extending drain intervals if things get worse.”
Probably need to go back to chaining down your tank caps.
“There is three main refineries that do group III oil base all of them in the Persian Gulf, why? Because they have the ultra cheap natural gas to make the hydrogen via steam methane reformation to hydrocrack paraffins into group III oils. The largest is in Qatar that stock is trapped now. It’s not some grand conspiracy it’s the USA lack of spine to force the straight open by overwhelming military force and yes this means Navy ships will get hit by enemy fire that’s how war works. We got them harder than they hit us. But they ran out the WPA clock and now have to make political theater of a cease fire.”
___________________________________________________________
Not just the natural gas energy, but the Arabian crude itself is far lighter than, for example, Permian Basin crude.
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