Polygraph

The price of diesel is at an all-time high.

Posted by All In with Chris Hayes, Checked Updated

Polygraph verdictTrue
Sources
8 support1 context
Said
1 time·
Confidence
85%
All In with Chris HayesSep 19, 2026
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44 claimsThe check →

As of 2026-09-19, U.S. diesel prices were at an all-time high. Reuters and NBC reported records on Sept. 11, J.P. Morgan cited an AAA record of $6.23 on Sept. 14, and Cleveland.com reported a record $6.39 on Sept. 17, with later sources showing the peak came around Sept. 21-22 at about $6.52-$6.53.

This claim is about the present, so it is judged as of the day it was checked.

What we found

Supports. Reuters and NBC reported on Sept. 11, 2026 that the U.S. national average diesel price hit a record high, passing $6 a gallon for the first time.[1][2]

Supports. J.P. Morgan, citing AAA, reported a record average diesel price of $6.23 per gallon on Sept. 14, and Cleveland.com reported another record of $6.39 on Sept. 17, both before the claim date.[3][4]

Supports. Later AAA-based reporting shows the record peak was set around Sept. 21-22 at roughly $6.52-$6.53 per gallon, so the price was at or near its all-time high as of Sept. 19.[5][6][7][8]

Context. By late October diesel had fallen about 18 cents from its September peak but remained far above prior records, so the situation changed after the claim date without affecting its accuracy then.[6][8][9]

Context. The sources do not give an exact AAA figure for Sept. 19 itself, but the reported records on Sept. 11, 14 and 17 and the later peak make the claim well supported for that date.[2][3][4]

Sources

9 sources: 1 fact-checker, 1 tier 2, 7 not rated

  1. 1Oil falls but head for 8% weekly gain on tight supply; US diesel hits ...reuters.com · fact-checker · cited for: supports
  2. 2Diesel hits all-time high of $6 per gallonnbcnews.com · tier 2 · cited for: supports, context
  3. 3Diesel Prices Hit New Record in September 2026 - J.P. Morganjpmorgan.com · not rated · cited for: supports, context
  4. 4Gas prices soaring for Sept. 17, diesel 'outages' reported in ...cleveland.com · not rated · cited for: supports, context
  5. 5Did U.S. diesel fuel prices reach an all-time high this fall?minnpost.com · not rated · cited for: supports
  6. 6US Diesel Prices Fall Nearly 18 Cents After Hitting Record High in Septembernampa.org · not rated · cited for: supports, context
  7. 7Average price of gasoline during Trump's term now ...miamiherald.com · not rated · cited for: supports
  8. 8Oil prices remain elevated on fears over costs across ...ttnews.com · not rated · cited for: supports, context
  9. 9US Diesel Prices Fall Nearly 18 Cents After Hitting Record High In Septemberbernama.com · not rated · cited for: context

Where this claim was made

Said in 1 published post

Checked 2 times

Each check reads the sources again. The newest verdict is the one this page states.

  1. · latestTrue
  2. True

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