Can one actually convert a gas system into another car? Think of converting my Audi 80 V6 2.8, which is already a bit old but in good condition, to liquefied gas injection. If nothing unusual comes in between I will drive it still well 100TKM. … but should it come to an early end then one could convert the system into an identical vehicle? My acquaintance (has an Audi A6 V6 2.4 with LPG conversion in Poland) told me that one can convert Gasnanla It has a certificate or something and is practically connected to the chassis number and thus you can no longer get a TÜV-single car. Is this true or is it possible?