There are many people that put the wrong fuel in their car and when they do, we use our experience in fuel drain to help get them back up and running again. An Audi A4 Tdi Quattro is one of the cars we have previously worked on. When we carried out the fuel drain on this car we only had to put 20 litres in and all the fuel fortunately was on the neck. After the mobile fuel drain was finished the car then started fairly easily. Find out more by visiting us online.