“It could do thousands of pounds worth of damage if there is a lot of water.
“But if it’s just a small amount you should be able to drain the tank and replace a couple of serviceable parts for around £200 to £400.”
A Morrisons spokesman said: “Water was detected in one our unleaded tanks yesterday.
“As soon as we became aware of the problem, the pumps were shut down.
“We estimate that approximately 25 cars have been affected. Anyone who thinks they have taken some of the contaminated fuel should call our Kendal store on 01539
Read more: https://www.thesun.co.uk/news/2633750/morrisons-customers-cars-damaged-after-petrol-at-supermarket-garage-was-contaminated-with-water/