In its release of monthly motor fuel prices the Bureau of Transportation Statistics (BTS) reported a price dip in December 2025. The average price for regular motor gasoline was $2.89 per gallon; down 5.1% from November 2025 and down 4.1% from December 2024.
Regional changes were striking. Average gasoline prices in the Rocky Mountain region was $2.58, which was down a full 9.0%. Prices in the Midwest dropped 7.3% to $2.74.
By region, the average price for regular motor gasoline in December 2025 was and year-over-year change
The average price for diesel no. 2 was $3.62 in December 2025, down 5.4% from November 2025, and up 3.5% from December 2024.
There is much more to be found, including interactive charts, on this page.
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Remember — only proper service and repair procedures will ensure the safe and reliable operation of your car. In addition, proper safety procedures and precautions, such as the use of safety goggles, the right tools and the equipment should be followed at all times to eliminate the possibility of personal injury or improper service which could damage the vehicle or compromise its safety.
Technology is always changing and what is current and accurate today may be literally out-of-date and inaccurate tomorrow. And when it comes to the current state of flux in the auto industry, nothing is more true.
The author has 30+ years of automotive experience and has assembled the most extensive collection of symbols and warning lights anywhere (over 1,000!) and can help you open and start any keyless start car with a dead key fob battery. BA, St. Joseph’s, ME: MS, RPI, NY
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