My car has a cng cylinder and it says it for Methane Gas. Today i visited STP and they refuse to check the cylinder as this is for methane gas and informed me that its dangerous.
When i searched online , it seems methane has is the alternate name of CNG.
Can anyone guide in this matter or provide the address of mechanic how can clearify.
I had just bought this car 3 months back and has been continuous running it on CNG.