Why stations do it
A car wash turns a five-minute fuel stop into a ten-minute dwell, and it adds a high-margin service the fuel margin can’t match. The stations that do this well treat the wash as a reason to choose the station, not an afterthought in the corner.
Start with the bay you have
Most stations don’t have room for a tunnel. A gantry (rollover) unit is the usual fit: small footprint, can run unattended, and handles the commuter traffic a station actually gets. If you already have a spare lane near the pumps, that’s often enough.
The revenue pattern
The win isn’t one-off washes, it’s the fuel customer who buys a monthly plan. Capture even a slice of your regulars on a plan and the machine pays for itself on volume you already had. In colder regions, the salt-and-grime season makes the wash a near-necessity, and stations with a working wash keep those customers through winter.
Three things that trip people up
- Power and drainage. The bay needs three-phase power and a drain that meets local discharge rules. Solve both before you pour concrete.
- Queuing. A wash line that blocks the pump island costs you fuel sales. Keep the wash approach clear of the fuel lanes.
- Climate rating. In the Gulf and similar heat, specify equipment rated for sustained high temperature, or the electronics complain.
A practical starting point
If you run a station with spare lane space and steady local traffic, a single gantry with a membership plan is the lowest-risk way in. Add recycling if local rules or water cost push you to. Grow into a second bay only once the first one is consistently busy.