Hi guys. Just wanted 2 confirm about the mileage Accord 86 gives. I bought an Accord 86 model few months back. The mileage is around 85-90 km in full CNG cylinder while on petrol its around 8-9 km/ltr.Please give in ur suggestions as to what are ur experiences and what can be done to improve the mileage.And many people (including PW members)have said that 4 tip spark plugs are good for fuel economy while 2 tip plugs are for performance. Can i use 4tip sparkplugs or are there any side effets