Your fuel line just got more expensive, and nobody adjusted your rate card. National gasoline averaged $4.211 a gallon as of August 3, per EIA weekly data — the number that actually matters for your fleet, since most DSP vans run gas, not diesel.
The Ram ProMaster 2500 and Ford Transit 350 dominate DSP fleets, and both run on regular gasoline at roughly 18-19 mpg loaded with stops and idle time. Run the math on a standard 150-200 stop route covering 80-100 miles a day: at 18 mpg, that's roughly 5 gallons burned, or about $21 in fuel per van per day at the current EIA price. Across a 40-van fleet running six days a week, that's over $26,000 a month in fuel alone — before oil changes, brakes, or the next price move.
The problem isn't the price itself. It's that most rate cards were built when gas sat lower, and Amazon's per-route rates don't auto-adjust when EIA prints a new weekly number. Every cent gasoline climbs eats directly into a margin that was already thin. Operators running diesel-heavy assumptions in their planning — because that's what most fleet cost content defaults to — are modeling the wrong fuel entirely. Gasoline is what actually moves through DSP fuel cards, and it's the number that should drive route density decisions, idle-time policy, and driver behavior coaching.
The fix isn't complicated: know your real gallons-per-route number, track it against the weekly EIA print, and build a 10-15 cent buffer into your rate conversations before you need it. Operators who wait until fuel headlines panic them are already behind on the number that actually matters.
See how this affects your cost per stop — free calculator at pexara.ai/calculator