National Diesel Price Trends — May 2026 Update
U.S. on-highway diesel averaged $3.78/gal the week of May 5, 2026 — up 4 cents week-over-week and 11 cents above the same week in 2025.
National and regional diesel price tracking with weekly EIA data context for owner-operators and small fleets.
One email per week. No fluff, no spam, unsubscribe in one click.
U.S. on-highway diesel averaged $3.78/gal the week of May 5, 2026 — up 4 cents week-over-week and 11 cents above the same week in 2025.
Five fuel-saving tactics ranked by ROI for owner-operators: fuel cards, idle reduction, tire pressure, route planning, and speed governance.
CNG runs $1.50–$2.10 per diesel-gallon-equivalent in 2026 versus $3.78 retail diesel — but capex, fueling network, and resale flip the math.
California diesel runs $1.50/gal above Gulf Coast for four reasons that don't change much: fuel specs, taxes, refinery geography, and pipeline access.
An APU pays back in 14–22 months at $3.78/gal diesel. Here's the truthful idle-reduction math for owner-operators.
We track the EIA's weekly On-Highway Diesel Fuel Price report every Monday afternoon and break it down by PADD region — East Coast, Midwest, Gulf Coast, Rocky Mountain, and West Coast — so you can see where pump prices are heading before your next dispatch. The national average is one number; the regional spread is the one that hits your settlement.
Coverage is built for owner-operators running their own books and small fleets watching cost-per-mile in real time. Expect weekly trend reads, refinery and crude context when it matters, and tactical pieces on cutting fuel spend through fuel cards, idle reduction, and route planning. No commodity-desk jargon. No politics. Just what diesel is doing and what to do about it.
Weekly trucker-focused brief. Free.