California

$6.643

Diesel /gal · 45th cheapest

45.4¢

State fuel tax · 42nd lowest

19.7%

OOS rate · 36th lowest

1,293,857

Inspections (24 mo)

Diesel price trend

California · 3 years, EIA weekly

Weekly on-highway diesel · 2023-10-09 → 2026-09-28

Fuel

Retail diesel6.643/gal

National avg: 6.643/gal · at or below average

Tax at the pump69.8¢/gal

■ State 45.4¢ ■ Federal 24.4¢ · per gallon

Roadside safety

FMCSA inspections in California, last 24 months

Out-of-service rate19.7%

National avg: 17.6% · above average

Violations per inspection1.09

Out-of-service by inspection type

Driver221,556 viol · 19% OOS

Vehicle1,175,368 viol · 20% OOS

HazMat6,297 viol · 23% OOS

1,293,857

Inspections

1st most

1,412,910

Violations

278,553

OOS violations

21.5

Viol / 100 insp

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Diesel: U.S. Energy Information Administration (weekly, by region — states inherit their PADD region price). Fuel tax: FHWA Highway Statistics MF-121T. Inspections & out-of-service: FMCSA (last 24 months). Estimates for guidance, not official figures. Not affiliated with FMCSA.