CostcoDiesel.com is a free, independent tool that helps drivers find Costco fuel stations across the United States and Canada. Whether you're looking for unleaded gasoline or diesel for your truck or RV, our map shows you every Costco fuel stop near you — with hours, addresses, and driving directions.
Costco consistently offers some of the lowest fuel prices in North America, but finding which warehouses have gas — and especially which ones carry diesel — isn't easy. Costco's own website doesn't filter for diesel, and other map apps don't distinguish Costco fuel from regular gas stations. We built this site to fill that gap.
Location data is sourced from Costco's public product API and updated regularly. We currently track over 760 warehouses across the US and Canada, including 70+ locations with diesel fuel.
CostcoDiesel.com is operated by a small team based in San Diego, California. We're Costco members and road-trippers who got tired of guessing which warehouses had diesel.
This site is not affiliated with, endorsed by, or sponsored by Costco Wholesale Corporation. "Costco" is a registered trademark of Costco Wholesale Corporation. We use publicly available location data to help drivers find fuel — that's it.
CostcoDiesel.com participates in the Amazon Associates program. As an Amazon Associate, we earn from qualifying purchases made through links on this site. This does not affect the price you pay, and we only recommend products we believe are genuinely useful to our audience.