Anybody out there no what I should do for evidence for the DVLA, because they are unsure themselves? When we bought the car it already converted to dual fuel. The car is 02 and was coverted before the car was registered. I do not know the owner of the car at the time so we cannot go down that route for the documents. I rang the manafactures of the LPG and they had a recorded for a garage who not longer exists. How can I get the DVLA to change the log book. One person last time I rang told me to go my local DVLA office and ask for a member of staff to step outside, I knew they wouldn't fall for this but I went anyway,and they said that was not enough evidence.Anyone else come across this? If so what did you do? My husband ask the DVLA today on the next mot could he have it put on there and forward that to them, he said not sure. It's like that programme the computer said NO.