I have one question guys. The RPM of my Cultus EFI reaches about the same figures on the same speed as shown in the pic. Now the question is, as I have heard that 1300 cc cars have the most economical speeds at about 100km/hr, is it true ?? while on the other hand, I have also heard that keeping the RPM to 2-2.5 is the most economical speed for any car...(which i restrict my Cultus to and get the mileage of up to 230 km on long route on in one CNG tank. Since it is a Cultus and CNG, so i seldom drive it on petrol :P)
now whats the reality folks, is it 2-2.5 RPM or is it 90-100 km/h (for 1300 cars) ??