The lighter the car, the more fuel it consume? O.o
By the way, did you test Esso fuel ?

Driving with load = 7.1 litre of petrol per 100km
Driving alone = 6.1 litre of petrol per 100km

So it's less fuel, not more fuel

Nope I did not try Esso before. Perhaps you could try both and tell us the difference

oh swt. Miscalculate it.
Erm, my car got no fuel computer.

Forte 1.6 EX also fuel economy package, while SX is worth for bucks...abit higher than EX in FC due to 17'' rims...

I don't think a C-segment 1.6 sedan can beat a B-segment 1.6 hatchback in terms of FC

Also, which car looks nicer in "Petronas Green" color... hehe

The larger the rims the more FC?

hey... im going to pump the 1st time ron95 on this wednesday.... any feedback of this new dunno wad extra??? ron97 raise price till i give up d... wtf

Depends on the engine cc..theoretically yes..

explain the theory please.. >.<

Your rims bigger = rims heavier..
Rims heavier = need more power to roll..

To make it as a more stupid term, smaller rim = more rubber on tyre = car "lighter"
bigger rim = less rubber on tyre = car "heavier"
When changed the rims, the mileage won't be accurate sometimes. But you still can roughly calculate the FC based on your experience. Like 1 week you drive about 500km and need 40L of petrol on your original rim. After change to bigger rim, with similar mileage, you only can last about 6 days and need to refuel.

Thank you very much for the explain ^^

i'd really like to see guzzlers try the ron95 xtra
i work in petronas but i think the 95 (before xtra) sux big time so i changed to either the primax97 or err...competitor's brand

my car's a guzzler and would like to test it this weekend when i drive to sepang for the marathon

I always thought of bigger rims like this:-

1) Heavier rims = higher FC
2) Bigger diameter = more torque needed to turn tire = higher FC
3) wider tires = more traction (friction) = higher FC

I'm tired of reiterating on how one should not use the computer to calculate FC and instead calculate manually, so I won't go there.

Anyways, I'm tempted to try this as well. I have always had good experience with petronas, but choose not to use it, because BHP is the nearest to my house. Maybe I'll try it on my next refuel just for fun.

My little brother tested the fuel in the VIOS, he said there is a difference in engine response

How was it? But I'm more interest on its response on constant speed of 100km/h and sudden whack till 130km/h..... This will really show how good a petrol are....

I understand your reasoning, since different car might have different accuracy on the fuel computer.

But I guess the accuracy of Ford Fiesta's fuel computer is quite reliable though, I used to reset both my trip meter and fuel computer whenever my fuel light comes up and triggering me to pump petrol. I have been using Caltex RON95 since I got the car till now, everytime I fill RM50.00, I will get a mileage of 350km +/- 10km for city driving, and the fuel computer consistently shown around 7.5L per 100km right before I reset it everytime.

It might not be the best way to compare FC of different car, but I think there's no harm using my car's fuel computer to compare FC of the same car across different petrol (or different driving style, different load, different route etc.)

Didn't drive the VIOS so I can't really tell
I will need to drive it first

wow even lowyat forum advertise the promax95 xtra .. now im viewing this page with primax95 ads background.

btw my car almost empty.. i wait empty till the indicator light shows. then kasi full tank.. but duno kampar petronas got o not. is it nationwide or some specific place only ?

During the launch it says "available at over 950 Petronas service stations nationwide" so I guess it should be available at your place. Look for the "XTRA" logo when you pump