Hi Product Hunt 👋 I built DEF Search after running into a frustrating problem on the road: finding Diesel Exhaust Fluid (DEF) at the pump before it became urgent. If you drive a diesel truck, RV, or fleet vehicle, you know the alternative is often buying boxed DEF at a much higher price—or worse, scrambling when your DEF warning light comes on. DEF Search helps you quickly locate stations offering DEF at the pump across the U.S., so you can: ✅ Save money compared to boxed DEF ✅ Plan ahead on road trips ✅ Avoid unnecessary stops ✅ Find DEF faster when you actually need it I built this as an independent project for diesel drivers because I couldn’t find a simple, dedicated tool that solved this well. I’d love feedback from: * Truck drivers * RV travelers * Diesel pickup owners * Fleet operators What features would make this even more useful for you?

DEF Search

Easily find diesel exhaust fluid (DEF) at the pump!

Easily find diesel exhaust fluid (DEF) at the pump!