The U.S. Energy Information Administration’s Gasoline and Diesel Fuel Update (released September 15, 2026) put U.S. regular gasoline at $4.319 for the week of September 14—up 16.2 cents from the prior week—and U.S. on-highway diesel at $6.285, up 31.8 cents. In Texas, regular averaged $3.806; Houston printed $3.738. Gulf Coast (PADD 3) diesel averaged $6.027.
Cox Automotive’s Auto Market Weekly Summary for September 14, 2026 flagged diesel crossing the $6 mark as a story to watch because freight moves goods and vehicles. That is macro color. For a Texas seller this week, the practical point is simpler: when fuel and financing both lean on the monthly budget, the trade number you accept can decide whether the next payment still fits.
PriceForMyTrade helps sellers get competing offers from local dealerships. Competition is handled manually—dealers contact you directly. First responses are often the same day; timing is not guaranteed. Offers are confirmed after a physical appraisal. Dealers can buy outright; you do not have to purchase another vehicle. Submitting a request takes about 30 seconds. That is not an instant valuation, and it is not a promise that an offer arrives in 30 seconds. The service is free to the seller.
When ownership costs are rising, locking a soft trade into the next deal is how a “manageable” payment turns into a stretch. Several local desks looking at your year, miles, and condition beat one worksheet built to print a payment.
Trade allowance. What a store will actually pay or credit after seeing the car—not a phone guess.
Payoff. If you still owe money, get a current payoff letter. A strong-looking allowance can hide negative equity inside a blended deal.
Purchase price and finance terms. Ask for the vehicle price before trade, the term, and the rate path. Fuel costs do not replace rate risk—they stack on top of it.
Prep the appraisal: service records, two keys, honest photos, tire and body notes. Condition still separates strong bids from weak ones when buyers are selective.
Selling with a loan, trading, or selling outright are different conversations—see /sell-car-with-loan-payoff, /trade-in-vs-selling-outright, and /how-competing-offers-work. East Texas sellers can start on /sell-my-car-east-texas.
Takeaway: EIA’s mid-September weekly print shows gasoline and diesel still climbing. Get competing offers so local dealers price your car—not a single desk’s need to make the next payment look small.