Demand-Driven Merchandising

Fuel prices are rewriting what used inventory is worth. The dealers who protect gross this quarter will be the ones who get their oldest cars seen, not just priced.

By Ashley Callahan, General Manager, PureInfluencer

The back row

Every used car manager has a version of the same morning. Coffee in one hand, aging report in the other, and a slow walk down the back row where the cars he has owned longest are parked.

He knows those cars by heart. The three-quarter-ton that came in on trade in July. The V8 SUV that looked like a sure thing at the auction. Each one costs him a little more every day it sits: interest on the money he borrowed to stock it, insurance, a space on the lot, and the value it quietly gives back.

By the end of the walk, he has two options, and he has chosen between them a hundred times. Cut the price and give up gross. Or hold, and wait for the market to come back to him.

This fall, both options cost more than they used to. A third option exists, and most stores never reach for it.

The auction is already pricing in the pump

The auction lane usually tells the truth before the retail lot does. Right now, it sorts cars by how much they cost to fill up.

In its Q3 report, Manheim broke wholesale prices out by fuel economy. Vehicles averaging more than 40 mpg, almost all of them hybrids, are up 9.9% since January. The 35- to 39-mpg group is up 3.7%. Then the line flips. Every vehicle under 30 mpg lost value, with the under-15 mpg group down 15% since January and the 15 to 19 mpg group down 8.8%. Manheim’s Jonathan Gregory puts the spread between the most and least efficient vehicles at 25% in nine months. (CDG News)

His read on the buyer is short: “Consumers are trading down, from new to used and full size to compact.”

Diesel is where it cuts deepest. The national average hit $6.53 a gallon on September 21, the highest in the Energy Information Administration’s 32 years of tracking, and 89% above January’s low of $3.46. (USAFacts) Diesels are only about 3% of the vehicles at Manheim, but they sat at 39 days of supply in September, 11 days longer than the market overall and up 27% from a year ago.

Here is the uncomfortable part. The vehicles losing value fastest are often the big, expensive units that were already the slowest to sell. The longer they sit, the more of the decline they absorb.

Holding used to have a safety net

For most of the last few years, holding a car came with a quiet consolation. Used values tended to climb in stretches, and that lift covered part of the cost of keeping the car. This year, the lift is mostly gone.

Cox Automotive just cut its 2026 forecast for the Manheim Used Vehicle Value Index, the industry’s benchmark for what used cars bring at auction, from a 2% annual gain to 0.2%. The index has historically averaged about 2.3% a year. (Yahoo Finance / Quartz)

September made the point. The index slipped to 205.9, down 1.1% from August, in a month that has averaged a 0.3% gain over the long run. It was also down 0.6% from a year earlier. (Cox Automotive) Cox chief economist Jeremy Robb put it plainly: “The high cost of fuel is beginning to show up in the Manheim data.”

Retail is following. Across roughly 1.43 million dealer listings tracked from September 5 to October 3, average asking prices fell 2.5%. SUVs and EVs each dropped 2.7%, vans 2.5%, trucks 2.3% and cars 2.2%. More than half of all listings were cut by more than half a percent. (ASOTU)

So the math on that back row has changed. Every week a unit waits is a week of carrying cost with nothing coming back to offset it. And when the price does finally come down, it comes down in a market where the dealer across town is cutting too.

Too much of one thing, not enough of the other

The trouble on the back row is rarely that a store has too many cars. It is that it has too many of the wrong ones.

Catalyst IQ, which tracks nearly all vehicle inventory marketed to shoppers, saw full-size truck inventory grow by 29,027 units from Q2 to Q3, with heavy-duty trucks adding another 12,288. Full-size trucks now make up 12.5% of inventory but only 10.6% of sales. Mid-size SUVs run the other way: 21.3% of inventory against 24.1% of sales, the largest inventory shortfall of any segment at 25,384 vehicles. (CDG News)

Rick Wainschel, Catalyst IQ’s vice president of analytics, gave dealers advice that sounds a lot like a merchandising plan. When units pile up, he said, “that’s where you put your marketing money,” and you make sure the right buyers can see the inventory.

The obvious fix is to buy your way into a better mix. That is harder than it sounds. Used vehicles under $15,000 had just 29 days of supply in August, down from 44 days for used inventory overall, and now make up 15.1% of used inventory, down from 20.6% a year ago. (Cox Automotive)

Lease returns offer some relief, but less than the headline suggests. They are up 21% from last year, yet lease check-ins are still down 55% from 2019. Cox’s Robb expects that gap to keep wholesale supply limited “as we move out through 2028 and 2029.” (CDG News)

So used supply is still tight overall, and that is exactly what makes this year tricky. The cars shoppers want are expensive to replace. The cars they are passing on are already on the lot, and the clock on them is running.

The third lever: who actually sees the car

Picture a shopper on a Tuesday night. She clicked an ad the store paid for, landed on a mid-size SUV, scrolled the photos and checked the payment. Two rows over on the lot sits a comparable SUV the store has owned for 70 days. She never sees it. She closes the tab.

Something like that happens every day on dealer websites, and it may be the cheapest problem in the building to fix. The traffic is already paid for. The car is already reconditioned. The only thing missing is the introduction.

Most websites are built to answer the shopper’s question: show me what I searched for. Very few are built to answer the dealer’s question: which of these cars do I most need someone to look at today? A sort by oldest waits for the shopper to go looking. And when she does, it tells her exactly which cars have been sitting. That is a negotiating chip handed over for free.

There is a quieter issue underneath. A website usually counts age from the day a car was listed. The dealer’s cost clock started the day he took the car in. Inspection, reconditioning and photos sit in between, and depending on the store, that gap can be days or weeks. The P&L number that matters is the one the website isn’t using.

Doing online what you already do on the lot

Every good used car manager moves their aged units up front. He parks them by the showroom door, puts them on the line, makes sure the sales team walks customers past them. Nobody calls that discounting. It is just good merchandising.

myTurn brings that same instinct to the dealership website. When a shopper lands on a vehicle page, myTurn places the units the store has owned longest alongside similar inventory, on every page and every visit. The price stays where the dealer set it. Shoppers never see a note about how long a car has been in stock. And nobody on the team has to log in, tag a vehicle or remember to update anything.

It works on the dealer’s own site, with the traffic the dealer already pays for, across the whole used inventory. That matters this quarter, when the instinct is to cut. If something has to give, it shouldn’t be the gross on a car that simply hasn’t been seen enough.

Stores that already turn well have the most to gain here, because their process was never the problem. They are simply getting more out of every visit they have already earned.

The car on the back row

Go back to that morning walk. The three-quarter-ton is still there. So is the V8 SUV. The market is moving against both of them, and neither a markdown nor more patience is free anymore.

The third option needs nothing new: same site, same traffic, same price. Put those cars in front of the people already shopping your site, before the next price cut and long before the auction lane.

FAQs

Why are fuel-efficient used cars gaining value in 2026?

Manheim’s Q3 data shows vehicles averaging more than 40 mpg, mostly hybrids, are up 9.9% in wholesale price since January. Every vehicle under 30 mpg lost value, and vehicles under 15 mpg fell 15% since January. Record diesel prices of $6.53 a gallon added more pressure.

Should dealers discount or hold aged used inventory right now?

Holding costs more than usual this year. Cox Automotive cut its 2026 Manheim index forecast from a 2% gain to 0.2%, against a historical average near 2.3%. That leaves little appreciation to offset carrying costs. Before cutting prices, dealers can increase exposure for aged units to shoppers already on their site.

Why is affordable used inventory hard to replace?

Used vehicles under $15,000 had 29 days of supply in August, down from 44 days for used inventory overall. They made up 15.1% of used inventory, down from 20.6% a year earlier. Lease returns are rising but remain 55% below 2019.

How can dealers move aged inventory without discounting?

Put the longest-held units in front of shoppers already browsing similar vehicles. PureInfluencer’s myTurn does this on the dealer’s own website, using existing traffic. It keeps the price and doesn’t show the shopper the vehicle’s age.

Sources:

• Fuel-efficient vehicles averaging 40 mpgs grow nearly 10% in price across wholesale market, CDG News, Oct. 8, 2026
• Diesel prices rose 89% from January low to September record high, USAFacts, Sept. 29, 2026
• Cox Automotive slashes used-vehicle price forecast for 2026, Quartz via Yahoo Finance, Oct. 7, 2026
• Manheim Used Vehicle Value Index: September 2026 Trends, Cox Automotive, Oct. 7, 2026
• Used Prices Fell 2.5% in Four Weeks, ASOTU Daily, Oct. 8, 2026
• Full-size trucks add 30,000 units to inventory in Q3, CDG News, Oct. 14, 2026
• Used-Vehicle Prices Reach Highest Level Since 2022 as Inventory Tightens in August, Cox Automotive, Sept. 11, 2026
• Off-lease inventory increases by 21%, CDG News, Oct. 13, 2026