Colorado

Rocky Mountain (PADD 4)

$6.407

Diesel /gal · 25th cheapest

20.5¢

State fuel tax · 7th lowest

14.8%

OOS rate · 8th lowest

133,561

Inspections (24 mo)

Diesel price trend

Rocky Mountain (PADD 4) · 3 years, EIA weekly

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

Fuel

Retail diesel6.407/gal

National avg: 6.407/gal · at or below average

Tax at the pump44.9¢/gal

■ State 20.5¢ ■ Federal 24.4¢ · per gallon

Roadside safety

FMCSA inspections in Colorado, last 24 months

Out-of-service rate14.8%

National avg: 17.6% · at or below average

Violations per inspection1.54

Out-of-service by inspection type

Driver28,177 viol · 38% OOS

Vehicle50,108 viol · 40% OOS

HazMat397 viol · 18% OOS

133,561

Inspections

21st most

205,431

Violations

30,396

OOS violations

22.8

Viol / 100 insp

← All states Open the Fleet Map →

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.