There are problems one should consider before converting a vehicle to NGV quite apart from the technical issues.
The range that one tank of NGV will take the vehicle is substantially reduced compared to how far one tank of Gasoline or Diesel will take you.
At the moment NGV is only available at PTT Stations.
A large percentage of Taxis in Bangkok were converted to NGV after PTT put pressure on government institutions to make it mandatory that Taxis should use NGV. This has recently been overturned as a result of protests from Taxi Co-operatives etc., however the numbers of Taxis already converted is high.
The Nett result of the above is that you will see LONG queues of Taxis at PTT Stations all over Bangkok, it can take over an hour to get to the Pump at some times of day. I would imagine it's quite a frustrating and humbling experience sitting in your NGV converted expensive private car in a line of Taxis!
Patrick


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