see my attached picture.
this is my FC. From last indicator, i pumped RM74 worth of fuel.
My driving style never exceeds 120km/h and mostly city driving. My RPM are most of the time, between 2000 - 2500 as this range of RPM allows adequate acceleration to the car. Although the picture shows that it hasn't reach the last bar of fuel, but from my experience, around 300km, the fuel indicator will lit, asking me to refuel. If RM74 runs for 300km, that's about RM0.25 for every single KM travelled. That's actually worse than my 2.0L 2008 Lancer GT. The second picture 7.7L/100km, although the figure is very good for me, but it's contradict to my actual spending and experience. The average FC is not accurate for my case.
There are 2 possible answer to this in my mind now:
1. ECU is not properly tweaked for FC
2. Power to weight ratio for Persona is bad because 1600cc need to pull a 1.2 tonne body. The more city driving (start and stop), the more fuel it burns.
It's very different from what Proton had advertised.
By the way, this is my Premium CVT
Those digital fuel range/fuel consumption estimator will never be 100% correct but the discrepancies wont be very obvious. In my opinion 7.7L/100km for city driving isnt that bad because every car will makan minyak during jam and i think 2000-2500 is abit heavy footed for me. Try and just hold the revs below 2k and let the car climb and i think its just that the fuel tank in the persona is really small with only 40L of fuel that makes it feel that the car makan minyak. Take the benz E200 2014 facelift for example and i know its like comparing between apples and oranges but just bear with me on this, the car can achieve 5.8l/100 km if driven at around 80kmh ish but when its super jam it can also go up to crazy 14L/100km. But the fuel tank is around 80L and highway driving itself the car is capable of doing 1k km of range. My point here is that 7.7L/100km for traffic jam/ city driving is not that bad and the fuel tank is just too small. Just my 2 cents