My rims all original stock

Same car Axia E 2016 stock, mileage 90K
tyres 250kpa, aircond always

16-17km/l
50% Seremban w passenger
out accelerate all cars at traffic lights
50% Seremban-KL alone
Avg speed 120-130kmh

18-19km/l
100% outstation trip fully loaded
Avg speed 110kmh

Exclusively Petronas (excl those stations that give inferior fuel)

many many years ago I tracked my fc, including gas stations, over 5-year period... had a big spreadsheet n charts too... lol

I found petronas gave the most consistent fc...and easily amongst the top 3

also fc fluctuates about the same time with all stations... like high tide low tide... all stations affected together... so if petronas is bad by x%... shell is also bad by x%... strange can't figure this out

also different cars gave a different overall "best" petrol station... Wira best on Caltex, Accord best on Shell, Altis best on Petronas, etc...

nowadays no more tracking and not too bothered which station liao... hahaha

anyways I just concluded a test... 80 vs 100 kmh max

car: ct200h
mode: normal
tyre: ps3, 35psi, 20% tread
eo: no idea
test distance: 1600km (about 1 month)
test route: subang-bangsar
time: 5:30am (50% highway speed limit test), 1pm (50% urban jam)
driving style: uncle

80 kmh - 4.1L/100km (24.4 km/l)
100 kmh - 4.3L/100km (23.3 km/l)

with some "optimal" stop-go traffic got it down to 4.0 L/100km...

will not be repeating this test... so stressful going such low speed... ... also got overtooked by lorry kena batu cracked my windscreen...

This post has been edited by dwRK: Dec 31 2020, 10:34 PM

In my case, I only use 2 brand petrol, petronas and bhp both 95 which due to setel apps/mesra points and cc rebates respectively. And since Im working in Lumut and back to KL every weekend, back and forth, data will based on my car meter, Accord 2.4 2015.

Consistently Petronas 95 give better km/l vs BHP 95. I get around 13.5-13.7km/l for per trip via Petronas which speed range from 110kmh at kampung road and 140-150kmh at highway. I try to maintain the same driving pattern eventhough it might close to 100% accuracy.

Bhp give me around 12.5-12.6km/l. This is based on my meter and it will automatically reset to 0 when I refuel. I will refuel when light up.

This post has been edited by ayamxxx: Dec 31 2020, 10:37 PM

thanks... good to know

what surprised me was best petrol for my wira end up being worst for my accord... I can only conclude different engine likes different petrol...

Now I need to conclude whether does Ron 97 indeed helps improve my Exora turbo FC.
few times I fuel up with Ron 97 and my average FC meter seems to show noticeable improvement over 95. And this is despite my heavy foot though sometimes I will try go granny eco drive

However I have been toying between Caltex and BHP which is not as common as Petronas and Shell. Which might also affect results.

Is the fuel consumption liter/100km in the car meter can be trusted? Some says it is not accurate, some say the car ECU should give the most accurate reading because it monitors the amount of fuel the engine use all the time. Which method do you think the best?

My Persona FC used to fluctuates a lot, sometimes 7.9L/100km, sometimes 8.8L/100Km. This year I decided to mess around with the MAP sensor, change air filter and clean throttle body, use heavier stock sport rim, and 10w40 oil instead of mineral 20w50, now the meter is constant at 8.7L/100km (about 10% more fuel consumption). However the mileage per liter doesn't feel changed because 11 liter of Ron95 still give me the same mileage as before.

it is accurate with limitations... did you noticed when coasting the instant meter reads 0... or when idling/creeping can give funky numbers? these are wrong numbers... usually it doesn't skew the L/100km too much but it can

the tank fill method would be the most accurate provided you don't trap gas pockets inside when filling

Got manual calculation result today, turns out to be around 8L/100km while the fuel consumption showed by the meter lowered by 0.1L now at 8.6L/100Km. Persona 2007 1.6 Auto, city drive average speed at 60km/h.

The meter have a known issue, always to trigger check engine light whenever going faster than 110km/h or revving past 3000RPM.

My accord shown a rather accurate km/l from meter vs actual petrol manually check. While my x70 did not, it shown lower fc figure vs actual or manual check, distance running vs petrol fill up

are you using the same tire and rim size as per the car specification? i'm thinking that maybe my inaccurate meter readings was caused by using a slightly smaller tire size. should use 195/60/15, but currently i use 195/55/15

Both all stock, no modifications done

fuel meter and check engine are 2 separate items, usually.
Usually if your check engine light lights up last 3000rpm it's usually a sign of oxygen sensor faulty or spark plug worn out /misfiring, causing the sensor to detect higher levels of unburned petrol.
Had that issue with ex Wira 1.3GLI and spark plug was the cause of check engine suddenly comes on.

didn't notice any misfiring or lost of power. it's a common issue in persona/gen2. would love to get an obd code reader to confirm it but the code reader thing is confusing.

Looking at all the figures, almost impossible for me to get close to all the numbers shared here lol.

Agree. Best to start with spark plug replacement first and see from there. Last time wrongly bought wira spark plug on my waja mitsu engine, it had somehow massive lack of power when reach 130kmh above. Then come engine light.

This post has been edited by ayamxxx: Jan 4 2021, 06:45 AM

Reset ur right leg & mentality

if can't record low... try record high lor...

I got few friends who have mentality of CANNOT LOSE. lol.

So on highway, or at traffic light will full throttle try to win cars. lol. Always want to win no matter what.

Quite many also Malaysian drive like this.

I think If someone cannot improve their mentality, until eternity hard to get good fc.