The forecourt notebook
Guides and explainers to go with the daily numbers — how Costco sets its pump prices, when they tend to move, what the membership really saves you, and how to spend less time in the queue.
Hours & access
The pumps close on exactly seven days a year in the US — and run longer than the warehouse on every other one. The dates, the eve-day cuts, and how Canada, Britain, Australia and Mexico differ.
Read article6 min read
Fuel quality
Costco and Kirkland Signature are licensed TOP TIER brands — but only where the program operates, and diesel is certified station by station rather than brand-wide.
Read article5 min read
Fuel guide
Costco sells diesel at only a fraction of its US warehouses — and at every single one in the UK and Australia. Here is the full list, with today’s price at each.
Read article8 min read