Diesel just fell. Does that mean relief?

When diesel prices drop, the first question from finance is simple: when does our freight bill follow? The honest answer is: later than you think, and less than you hope.

Three places the saving gets stuck

• Surcharge tables lag. Most carrier fuel surcharges are indexed to a published average and reset on a schedule: weekly, monthly, sometimes quarterly. The drop you see at the pump reaches your invoice one to several cycles later.
• Contract rates don't move. The base linehaul rate is negotiated separately. Fuel is only one component, and a lower surcharge does nothing for accessorials, detention or minimum charges.
• Your own behavior dominates. For many mid-market shippers, expedites, partial loads and last-minute bookings move freight cost more than fuel does.

A cheaper liter of diesel won't fix a half-empty truck booked at 4 p.m. on a Friday.

What to check this week

• Which of your contracts index fuel, to what, and on what reset cycle.
• How much of last quarter's freight spend was premium or expedited, and what caused it.
• Average load fill on your five most frequent lanes.

Where WERISCO fits

Start with your own freight invoices: tag each premium or expedited shipment with the late order or shortage that caused it. The part your operations control is usually where the savings conversation should begin.