well bro. as per the previous discussions here on PW, its generally a view that auto hondas give trouble on CNG one way or another. still, there are a LOT of them out there who are happy with there CNG setups on auto trannies as well. proper maint of lubes and timely tuneups can save u a lot of trouble.
as far as from WHERE, u can go car care in G-10 markaz, previously known as Automax. for more details, please free to contact me at 03215572620.