Drivers say their cars have broken down after diesel and petrol were put into opposite pumps at two fuel stations.
Customers in Somerset using the Greenway Motors Texaco station in Taunton and Asda Locking Express in Weston-super-Mare have been affected.
Sophie Rollason, from Weston, said she was “really angry” after the “mix-up” resulted in her losing a day’s work.
Asda apologised and said it was investigating a “possible contamination” at the Locking Express.
A spokesperson for Texaco said any customers who have “suffered a problem after filling their vehicle at Greenway Road service station” should contact Texaco Customer Care via its website.
Mrs Rollason’s husband’s work van has also been affected and she says he is facing missing work for the rest of the week.
She has explained he is a sole trader and the family’s main earner.
“He broke down outside our house,” she said, adding: “I’m worried about the damage to my car – that has still not been totally calculated.”
Mrs Rollason called into the Asda Locking Express station on Tuesday morning after dropping her children off at school and on her way to work.
“Everything was fine until I got to Haywood village down the road and the car started to lose speed, and then wouldn’t start at all,” she said.
“When the recovery man turned up to help find out the problem he smelt the fuel cap and told me he could smell diesel, not petrol in my car before the garage confirmed it to me.”
She has explained she has three children and they rely on their car “heavily” to get about.
An Asda spokesman said: “We are currently conducting an investigation into a possible contamination at our Locking Express petrol station.
Extracted in full from: https://www.bbc.com/news/uk-england-somerset-68829324
