Church members in Manchester are offering passing motorists a car wash with holy water.
Levenshulme Baptist Church regulars plan to clean cars with the gallons of left-over water from this Sunday's baptismal service.
The blessed water from the church's baptism pool, in which people are immersed as part of the service, will be recycled for the washes.
Members say it makes the free washes environmentally-friendly.
Minister of Levenshulme Baptist Church, Ian Spence: "We are pleased to offer a different kind of service to the community.
"However, I can't promise that the cars will run problem-free as a result of the special water used."