When Stellantis Changed the Recipe - September 27, 2026

Tyreese: So I'm sitting here Friday afternoon, catching up on the industry news, and I run into a Wall Street Journal piece that made me put my coffee down. And here's the thing, it wasn't the inflation angle that got me. It was the second sentence.

Tyreese: Stellantis, that's the parent company of Jeep and Ram, quietly switched the bulk oil in its dealer service departments. They went from zero W twenty to five W twenty on some of their V six and V eight engines. Not a recall. Not a new model year thing. A supply move.

Tyreese: Look, when an automaker changes the oil recipe at the dealer level, that's not a footnote. That ripples through everybody downstream. Us, the fleets, the parts guys, the customer standing in the driveway asking why their service interval just changed. So I started digging.

Tyreese: Now, some of this background I covered earlier this week. The Iran conflict knocked out refineries in the Persian Gulf back in March, including a Shell refinery in Qatar that's a major source of the base oils that end up in American motor oil. That refinery won't be fully back in production until twenty twenty seven, Shell said so themselves.

Tyreese: But the Journal piece added details I hadn't put together. Full synthetic and low viscosity grades, your zero W twenty, zero W sixteen, zero W eight, are the most affected by the reduced refining capacity. And here's what really got me: normally, refiners could substitute Group two base oils for Group three. But Group two is in short supply too, because refiners are giving priority to feedstocks for fuel instead of feedstocks for base oils. Fuel pays better right now. And American refineries, according to a Ducker Carlisle analyst, generally aren't set up to manufacture Group three base oils at all. The other big hub is South Korea, and those refineries can't get enough feedstock to fill the gap.

Tyreese: So think about what just happened. The substitution ladder is gone. The domestic backup plan doesn't exist. And the overseas backup can't get raw material. That's the part people miss when they say prices will come down soon. This is a structural squeeze, not a blip.

Tyreese: And this is where it gets interesting. Because Stellantis didn't just swap the viscosity. They also shortened the service interval. Drivers who used to go ten thousand miles between oil changes now have to come back at seven thousand five hundred. The company called it a temporary measure in response to current global conditions.

Tyreese: Now watch this. A shorter interval means more service events per vehicle per year. That's demand going up, not down, at the exact moment the product got more expensive. Margin squeezed, volume rising. That's a weird combination, and if you're an operator, it matters a lot, because your routing, your scheduling, your tech headcount, all of that was built around ten thousand mile intervals.

Tyreese: Okay, so the discovery that actually surprised me. I'm reading further, and there's a Detroit repair shop owner, Ali Alhumaidi, and he says customers have started bringing their own motor oil in for oil changes. Bottles from Walmart. His ticket went from around a hundred dollars with the oil included, down to twenty to fifty dollars in labor only.

Tyreese: And Costco? Costco raised their private label Kirkland motor oil to fifty eight dollars for ten quarts. Back on May thirtieth it was thirty six. And they're limiting how much any individual customer can buy online, which analysts say is really aimed at stopping small independent shops from buying retail stock to service their customers.

Tyreese: You know what I mean? The customer is adapting faster than the industry is. They figured out the oil is a commodity and the labor is a commodity, and they're unbundling the two. That's the real story here. If your whole pitch is, quote, we bring the oil, you're now competing with a Costco pallet. If your pitch is convenience, documentation, and trust, you are in a completely different business, and that business is fine.

Tyreese: We've done this a hundred times at MOMS. The driveway is the product. The fact that the truck didn't move, the employee didn't lose an hour of their day, the fleet didn't park a vehicle, that's what they're paying for. The oil is just the consumable inside the service.

Tyreese: Now, let me tell you what this means operationally, because I think this is where most operators are going to get caught flat footed. Three things.

Tyreese: Number one, stocking. You've now got another viscosity line item to carry in the van. Five W twenty in jugs or bulk, on top of what you already carry. And the spec has to match the vehicle, not the owner's manual from two years ago. Write it down. What went in, how much, which spec, every single job. Because fleet contracts specify an oil grade, and if the dealer changed the recipe, your paperwork has to match reality.

Tyreese: Number two, pricing. Valvoline's executives said their synthetic costs are up about five to seven dollars per oil change since March, and they've raised prices at their company stores and passed the increase to franchisees. A Chevy service manager in Detroit said he's been eating the cost increase because his customers are squeezed, and his transmission fluid is up about fifty dollars from where it used to be. Look, I respect the heart. But eating five to seven dollars a ticket is not a business model, it's a countdown. Price it plainly. One sentence to the customer about why. People accept honest price moves. They don't accept surprises.

Tyreese: Number three, and this one's seasonal, so listen up. Stellantis themselves said five W twenty is less optimal for cold weather conditions than zero W twenty. And we are heading into winter. Cold starts, trucks sitting overnight, fleets that run early morning routes. The viscosity question matters more in January than it does in September. Be the operator who knows the spec and warns the customer before the cold snap. Not the one who pours whatever was cheapest and hopes.

Tyreese: Alright, second story, because this one ties in. Fleetio, the fleet maintenance platform, announced their A I Service Advisor is generally available. It was built on one of the largest fleet maintenance datasets in North America. During a six month open beta, it assessed one point four billion dollars in maintenance spend. Fleets got vehicles back in service two and a half hours sooner per repair, on average. And one in three fleets on their platform is now using A I to prioritize maintenance work.

Tyreese: There's a fleet admin manager at Ramos Oil quoted saying it saves her an hour and a half a day, because the A I flags the line items that need a deeper look and she doesn't have to read every work order herself.

Tyreese: I'm sitting here thinking about what that means for us. The people who hire you, the fleet managers, the operations directors, they now have an A I reading every work order line by line, checking estimates against a billion dollars of history, and drafting approvals automatically. Your invoice doesn't land on a desk anymore. It lands in a system that knows what the job should cost.

Tyreese: So here's my take, and I say this as somebody who builds software and runs trucks. If you send digital, itemized, photo backed service records, you are speaking their language. You are the vendor the A I approves in one click. If you send a greasy carbon copy with a total at the bottom, you're speaking a language nobody in that office reads anymore. The bar moved. Match it.

Tyreese: And honestly, I don't know yet exactly how these A I advisors will score a mobile oil change against a shop visit. The pricing models are built on shop labor rates. So let's figure it out together. But the direction is obvious. Documented, digital, verifiable. That's been my rule for thirteen years. No evidence, no green. Now the fleet industry is running on the same rule.

Tyreese: So here's the bigger idea I want to leave you with. When the rules change mid game, and they just did, viscosity, intervals, pricing, A I verified work orders, the operator who adapts on paper first wins. Update the spec sheets. Update the price book. Update the service report. The truck that shows up with the right oil, the right documentation, and a straight answer about why the interval changed, that's the truck that keeps the contract when everything else is shifting.

Tyreese: Because Stellantis had evidence. Their supply was tight, so they changed the recipe. That's how the big players move, on evidence. You do the same. Evidence you used the right spec. Evidence you did the inspection. Evidence the vehicle left in good shape. When the whole industry is running on evidence, the operator with the best evidence wins.

Tyreese: I'm Tyreese. This is the Mobile Oil Change Industry. I'll catch you tomorrow morning.