I try add in this item below, really improve my performance of the car. Even climb hill much better rather use lower gear for auto. With 4 ppl ard 50kg each can really less consume the petrol.

Aircon cooler ard 20%. Overall my fuel save ard 30%. Extra 1 bar can go ard 70km for less jam city drive. I am using Myvi. I full tank Myvi ard rm70 when the bar show 2nd last I pump in.

http://yslinfinity.wordpress.com/benifits/

Hi, these are my suggestions.

- Try thinner engine oil from 20w-50 to 15w-40. (If your engine is very good, you can even try 10w-30).
- Install vacuum gauge to train your right foot.
- Check spark plugs and change them if too old

Ok. Consumed a bottle of Caltex Techron Concentrate Plus, changed fuel filter.
Here are the latest FC I got :

Fuel : 35.5L(Caltex Ron 95)
Engine Oil : Bardhal 20w-50
Distance Travelled: 289km
Fuel Consumption: 8.14 km/l
Driving condition : 100% city drive

Some improvements.
Next phase will do an engine flush with a bottle of AmSoil engine flush.
Then pour in my newly acquired Mobil 1 0w-40 Advanced Fully Synthetic Oil.

Mitsubishi Mirage 1.2 Auto
Best FC: 24km/l
Worst FC: 18-19km/l

Evo X
70% highway 30% city

I heard some ppl said that by pasting this card at the tank's cover, it can save petrol. Basically this card will produce negative ions.

http://www.livingactivegenius.com/

Anyone tried this before?

Car Model - Perdana V6
Type of Fuel - Petronas Ron95
Fuel - RM83.30@RM1.70/l
Mileage - 673.75km or 13.75km/l
Driving Condition - 90% highway@ autocruise at 100-120kmh, city  driving 10%.

Just make sure you drive on the most  left lane.  lol

2008 Toyota Mark X 250G
Recently just got my best record FC measured: 12.4km/ltr of mix city/highway using only ron 95.

thought Mazda diesel would be one of the best. BMW 2.0 diesel can achieve 6-7l /100km in a stop and go traffic.

This happen everywhere across the land

the driver will be proud of saving brake pads for 10 yrs , his money , fuel consumption and dont care about the rest.

money first, don't care of his  surrounding  and many other things not important at all. 

1) Model : Perodua Axia 2017 e spec (Manual), VVTI version.
2) Petrol Used : Petronas Primax
3) Engine Oil Used : Perodua 0w-20 fully synthetic
4) Fuel Consumption average: 17.x km/l . Around 420-430km for each full tank.
5) Driving Condition : mostly City driving , sometimes highway.
6) Average Speed/Max rpm : Dont know, just drive. Hardly follow eco light. Car also no rpm meter.
7) Latest mileage : 15k
8) Modification : None
9) Tank Size : 33 litres but if E light comes on, can fill up to 25-26litres.

Best record. 163km for 7.55litres. Thats 21.6km/l. No joke.
Refuel at Petronas Taman Melati, go Mont kiara, go up Genting, come down, 2 bars down, refuel full tank at Petronas Usj 4.
Very close to Perodua's claim 22.5km/l for manual.

Otherwise at average 17km/l is already good liao.

1) Model: Honda Accord 2.4 8th Gen 2010
2) Petrol Used: RON95 (Petronas, Caltex)-Whenever nearest gas station I see when yellow blinking came out.
3) Engine Oil Used: Honda Fully Synthetic SN 0W-20 (I service every 10k at Kah Motor Honda after 5 years warranty expired-I ask them to do and they ok-this model interval is 5k km which is waste of time since I need to go back to sc every 2 months, lol)
4) Fuel Consumption average: 10.46 km/l based on manual calculation (680km/65litre)
5) Driving Condition: 70% highways 30% city, No jammed
6) Average Speed/Max rpm: On highway 130km/h, (max:180km/h, low: 110km/h), city 80km/h
7) Latest mileage: 185k km
8) Modification: Soundproof on bonnet, and 4 door side panel (No performance mod)
9) Tank Size: RM143 at RM2.20 per liter (Car tank is 70 litre, but I consistently pump in 65 litre after yellow blinking came out)
10) Tire size: 225/50 R17
11) HP: 180PS 222NM K24 Engine. VTEC kick in yo. Lol.

Urs really jimat, Honda newer earth dreams engine really give more mileage per fuel tank. But ur tank size seems like much more smaller or u refill fuel b4 yellow light come out perhaps 🤔🤔.I drive jimat2 also can only get 12km/l, but meh, not feasible/practical for long term. Usual 2.4 accord I see, all pijak minyak on highway, me included. Hardly see people cruise relax2 sit on middle lane since this d segment car sedan is so damn stable at high speed. Lol.

Do you on ECO mode?

1) Model : Toyota Vios 2006  1.5E ( 1st Generation )
2) Petrol Used : 95 & 97 exclude racing type. ( Petrol brand name it, i've tried it. )
3) Engine Oil Used : Shell HX-7 / Recently changed to Exol
4) Fuel Consumption : About 8.60km/l
5) Driving Condition : 90% city, 10% highway
6) Average Speed/Max rpm : Average 60km/h - 90km/h ( City Ride )
7) Latest mileage : 182k+
8) Modification : Spark Plug Iridium /  Engine Stock
9) Tire Size : 195/55/15
10) Tank Size :  45 liter

Pump Full tank till Petrol Leak out     
Still runs only about 330km - 340km till last bar lights up, sometimes will push it till 360km before refuel.

Well, used to go till 440km+ Full Tank.
couldn't find the caused of this drop