50 Kg Cylinder and Eight Kg CNG Gas, I think Ur CNG wala Looting ur self.
how possible that a Cylinder caticity are just 7Kg max and they fill it up to 8Kg.
amazing CNG Station.
I fill my 7Kg empty cylinder here in Isbd from Attock CNG they just charge in between Rs.325-345.
for Engine Oil try Zic A (3 Ltr).