Yes ive tried once. on the Sban-PD highway.
Because the road is empty, decided to see how fast the Axia can go. About 140.
The feeling of adrenaline and plus the tune of 3 cylinder engine revving almos like a in-line 6.
Ego also. Small car able to bully bigger size cars.
Because kena before bigger car bully small car.

But i dont recommend on a stock 14" tyres. And yes, after speeding sure 1 bar of fuel level drop.
So yes, i know how it feels.
Besides i myself dont drive extremely fast in this compact car.

Exactly my thoughts. My 2016 Axia E spec (Manual) does 16KM/L , sometimes 15Km/L if I drive hard and speeding. Mix city drive + highway. And with aircond.
Yes I know mine is manual, so your auto should get around 14KM/L on mix driving.

I noticed sometimes Petronas sometimes give poorer FC thats why I try reduce using Petronas.

By right your Passat should be doing slightly better than 10.5L/100km due to bigger engine and higher gear ratio = Lower Rpm / More relaxed engine .
After all it was designed for the autobahn.

Just for comparison my Exora when doing 130 constantly it does around 9.xL/100km , close to 10L.

As for your saga, well the older Campro engine wasnt designed to be fuel efficient even with the IAFM add on which only mask the torque problem.
Newer VVT protons are much more fuel efficient.

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.

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.

Sound just like my friend with Camry Hybrid.
I mean - a Hybrid is meant to save fuel right?
But the way he drives with me on board - Its impressive how the engine and hybrid system still survives after 175k of hard driving. Toyota quality.

On the highway..minimum 130. Max out 170. Sometimes he will even floor it all the way , with the Power meter going to the extreme end of the meter

And when he wanna slow down, instead of braking early, he downshift to B even at 110. Very frequently.

I drove his Hybrid and yes I can say - The power is impressive. Instant torque. Very willing engine.

FC? I saw his average FC meter showing about 10.x km/L before a long distance drive. Best record only 14km/L.
I guess he doesn't know how to do regenerative braking. Hard braking yes.
Which is why his Fc is considered bad - But he ain't complaining because he can afford the fuel.

This post has been edited by SleeplessEyes: Jan 4 2021, 06:06 PM

Agree with you.
My parents have a HRV too (non hybrid version) .
if I were to drive it, with mostly light foot and once in a while "zoom" acceleration, can get 12KM/L, with ECO mode on.
But for my mom, she drives less than 10KM, so yes, can get around 10-11KM/L. Eco Mode turned on.
Oh BTW , they are using 5w30 Honda engine oil, not 0w20. Thinner oil does make a difference.

I think those which claims to get 10KM/L, have really heavy foot, and turn off the ECO mode.

Actually not only Honda have 0w20, they do have 5w30, but in Semi form.
Usually they will just put in 5w30 for HRV, unless one specify - "I prefer Fully" .

Long distance, have tried before.
If steady below 110 on the highway, the FC meter can go as high as 18-19Km/l , on a light foot.
And have to discipline oneself to stay on the left lane all the time
Yes, its possible.

For comparison - HRV is rated 1257 KG . Proton X50 is around 1325Kg, which is heavier but has a more powerful engine. Why is it heavier than HRV, not sure why. Maybe cause of the turbo and intercooler.
The heaviest is Toyota CHR with 1,385 KG. Yet its 1.8L also.

Since you talk about C segment cars
The Civic 1.8S version weighs the same as HRV - 1251KG.
While the Altis 1.8, is 1,365KG

Previously when we had MCO 1.0 Total lockdown and the RON 97 was super cheap (RM1.55
per litre), I actually tried RON 97 for my Axia E. It does show better mileage.
Well too bad, now the RON 97 is high, so I stick back to 95.

Yes, Shell is the worst for my Axia and another also.
I have tried BHP, almost similar to Petronas mileage.
Usually if BHP, I will goto the Batu 3 branch near HICOM traffic light - provided I'm on the way to Kota Kemuning or Klang.

Otherwise, BHP is quite limited in Subang area alone.

Share mine.

Axia E spec Manual.
Recent trip from PJ to K Terengganu.
New Bridgestone Ecopia tyres (only the front)
Average speed around 100-110..sometimes 120.
Travelled est around 40-50KM around KT district.

Using Petronas 95 , managed 451.3KM

Refilled at KT using Caltex, the petrol pump showing 25.3L , which I'm kinda sceptical because
1) The pump is kinda old fashion, like 90s with noisy pump, never upgrade, so calibration might be out.
2) My fuel light havent come out, usually if it comes out its around 23-24L.

So if based on 25.3L for 451.km = 17.9KM/L
If I base on 24L = 18.8Km/L

Drove back to PJ with Caltex, the fuel light finally came out at 493 . Seems better mileage.
Probably because the return trip I used the Jalan Kemaman-Dungun coastal road to Chukai.

Update:
Refilled Caltex - This time petrol pump is new and modern.
Refilled around 26.3L at 500KM so thats 19KM/L


This post has been edited by SleeplessEyes: Apr 5 2022, 03:34 PM

Update on my Axia E spec (Manual)

Note:
1) Changed oil to Mobil 1 Advance Full Syn 5w20 on first fuel up. This is 2nd fuel up after oil change.
2) Cleaned TB at 108K due to irractic idling. Will monitor again after this.
3) Swapped front and back tyres.

Using Shell Ron 95.

Driving conditions : Full city driving, frequent short distance.
Total estimated passenger weight combined. : Estimated 235kg.
Somefimes carry goods.

Fuel amount: 25.4ℓ, Distance: 345.2㎞
Fuel economy: 13.59㎞/ℓ