We inquired at a conversion center in C.Raymundo, Pasig called Gensoko or something like that. I plan to have a donut tank and put it outside the van, to replace the spare tire under the van, just like Teb's Fortunner --> http://bigbigcar.com/boards/Default....51&find=unread
But according to them, that's illegal and the tank must be inside the vehicle. Does anyone here know if it's true?