My opinion of higher Ron feuls are better suited for start stop drives, ie town, or top speed runs on the race track.
And the turbo engines make best use of these kind of feuls.

On a highway, with constant velocity, a lower Ron fuel will do just as well.

My last run on just Hyway at 110kmh 1 person, 20 kmL.

3 adults, 50% Hyway, 50 % trunk/ B roads,
18.5 kmL.

All on Ron 95

This post has been edited by jtan.pdr: Aug 24 2018, 01:12 PM

Ya..
That's why I said that higher Ron is better for start stop traffic.
The higher combustability of high Ron fuel makes the engine more 'eager' to move..

Once on Hyway, and just cruising, u won't feel the difference, and higher Ron higher combustion does not come into play unless u are racing on the Hyway,

So for long distance cruising, save urself some money and just use Ron 95.
Unless money is no object la.. Heh.
Below is a test done by Paul tan.

<a href='https://<link removed>/2015/02/04/ron-95-vs-ron-97-fuel-test-use/' target='_blank'>https://<link removed>/2015/02/04/ron-95-vs-ro...-fuel-test-use/</a>

hmmmmm... link removed... anyway
anyway, google: ""RON 95 vs RON 97 fuel test - which one should you use? - Paul Tan""


There's also a test done on 'fifth gear' TV show, Mabbe u can find it on utube, where they test performance on a dynometer..
That's where they discovered where turbo cars benefit more from higher Ron fuels.
here... found it.
https://www.youtube.com/watch?v=gQghB4asSnI...nnel=coltstatus

or google: 5th Gear - High Octane Fuels, if link is removed...

Be advised, higher Ron also makes ur engine run hotter.

This post has been edited by jtan.pdr: Aug 25 2018, 02:36 AM

I could Always be wrong..
An all knowing omni being I am not..
Lol
Please correct me if I'm wrong..
Will love to correct my mistake and any misconceptions I may have..
And I'll thank u for it too!
Your humble servant..
Jtan

Lol.
Not being sarcastic at all, but acknowledge my info and views may not always be right...
I'm only human..
I now have to face in my life that my son and daughter can prove me wrong.
(and I'm actually feeling proud that they can do better than me!)
And I insist that they prove me wrong rather than give me face..
Really, not being sarcastic to u..
My apologies if I came across that way...


This post has been edited by jtan.pdr: Aug 26 2018, 07:09 AM

Other than how u feel about the fuel type response from your car, a quantifiable way is the milage you get from the various fuels.
How you feel is subjective, but also important.. Don't get me wrong..
But the pure numbers in this equation, imo, is the science of the subject. The numbers is quantifiable.

Then the answer to the equation of kmL for the different fuels involved can be answered and much thanks from me especially since I've yet to use ron 97 for this car..
Then we can convert KM = RM..

Add the kmL and how u feel about the driving characteristics of Ron 97 will determine if its worthwhile to pay more compared to the returns.

My2sen

Will try 97 in my next full tank.
I'm now very curious.. Lol
Let's me see how.. Heh

This post has been edited by jtan.pdr: Aug 26 2018, 07:02 AM

Oh..
Another reason for engine knocking may be from fuel contamination..
Sometimes, older stations have their petrol contaminated with water..or other kinds of contamination. Ie, microbes, bacteria etc..
Emulsified water with petrol can lead to knocking.
Surprising..

Also check the spark plugs, they give signs of unusual symptoms of lean or rich fuel delivery..

But engine knocking due to ron rating is not very common in modern engines cos the ecu will adjust for the deficiencies.(retard or advance the spark)
This is also mention by Singk in his/her earlier post.

This post has been edited by jtan.pdr: Aug 26 2018, 07:39 AM

lol
no worries...!!!
i'm not here to argue or disrespect anyone...
unless they're being really really obnoxious and offensive twat imo and everyone else in the thread feel the same as i do..
we all have our own opinions and thoughts, democracy and all that stuff..

am just here to offer my experience and share knowledge to others rather than just my kids and junior staff.

lets 'live and let live'.
i'm getting too old to have to go and fight for every slight or imaginary insult in my life..
have more important things to do, as do ALL of us... right? heh

sometimes, life and work stress gets the better part of me and i may respond rather gruffly (or sound sarcastic) and for those moments, my apologies...

and i'd like to thank you James_yka, for being an important contributor to this thread!!
and that goes for all u others!!! (u know who u are!!)

lets keep alive the muhibah relationship we have here as we march to our second true MERDEKA!!!

let me graciously bow out of this post by wishing everyone a happy merdeka holiday and may your journey be filled with love, joy and everything thats related to happiness!!

live long and prosper..

This post has been edited by jtan.pdr: Aug 26 2018, 01:40 PM

ya man.. reduce in power...

if any of you guys/gals feel that the engine is feeling unusual in terms of power delivery, ie sluggish etc, try another petrol brand...
see how it feels...
different stations for same brand can try oso... some stations more dirty than others, especially older ones that have not cleaned their storage tanks..

lol
ya, the marketing lies that plague our lives...

before i bought this car, i did some checks, like feuly, to see what people were getting kmL for their cars..

i decided that 14 kmL (some where in the middle) was a more realistic number and i set my expectation for this car and not the 22 kmL stated in their sale pitch. and at 14kmL, i was ok with it...

it seems that advertising is expected to over state or over promise results, that actually bodes ill for the society that we live in,
to expect that stretching the truth is normal, or leaving out the words, ""achieved in perfect laboratory conditions""....
almost to the level of lying to my face...
compulsive liars shud become advertisers!! lol

it creates a society of mistrust and where advertisers are not held accountable for their actions..
in the end, living in this kind of society, can we even trust our partners?

this is the capitalistic world we live in..

anyway, i digress... lets get back to the discussion of the bezza..
aaaaaaaaaahahahahha!

This post has been edited by jtan.pdr: Sep 7 2018, 11:42 AM

Ya man.
Me on the Hyway, I got 19kmL.
Anyway if I were to come from, let's say a hybrid or diesel, I wouldn't raise an eyebrow..
But coming from a 1.5 wira auto, it's a great improvement..
I used to get rm60 of Ron 95 = 200km.
Town driving.
So my expectations are quite low...
Even the Nissan sylphy will get me around 9kmL. Around rm90 = 350km.
So, all things are in a state of constant relativity...
Just that mine is low.. Lol

Wah..
This is new to me..
Didn't know that..
Aiyo.. Old dog still must learn new things..
Lol

Thanks andyshim89 for this info!
Definately will keep in mind.

Drive safe peeps...
I was just telling my son about reading drivers of other cars'...
He's gonna take lessons on driving soon, he's that age.
I was comparing drivers to gamers, especially world of tanks.
Seasoned gamers or high experienced ones will play a certain way while newbies will do crazy stuff that's not expected..
Same with drivers in the real world.
Seeing how steady a car can track a corner or keeping one's lane gives an indication of the level of expertise and concentration that driver has.

And the need to create a safety envelope around his car was tantamount to emergency braking safely as to tailgating the car in front..

Just witness an impatient satria tailgating around a blind corner and hitting car in front cos traffic suddenly stopped..

I oso had to jam brake..
Can hear the satria with sports rims and racing stickers (without ABS) tires screech and then bang..
All the help from abs, esc, racing tires, etc cannot help ourselves from our own and others stupidity..
Watch ourselves as we watch others.

Stay safe people..
Even if others are not kind to you, you can still be kind.. Even if its only to yourself.

Otherwise, let's have a seat and enjoy the coffee, tea, or whatever rocks your boat..
I think it'll rain today...
World peace people.

This post has been edited by jtan.pdr: Sep 14 2018, 10:07 AM

its raining again...
had some aquaplaning situations recently and brought me back to the times when i had a major accident with tires locking and engine dying and total loss of control... back in the 80s, where there's no abs yet.
take care people...

also my main advice, good medium or soft compound tires with good water dispersal qualities...
the bridgestone ecopia tires that came with the car is not bad, imo...


below is a vid explaining the various drive types and its characteristics ...

https://www.youtube.com/watch?v=TdwuftIUwYY

https://www.youtube.com/watch?v=shwgNV36xFA


its these wet times where speed is not your friend..

This post has been edited by jtan.pdr: Sep 16 2018, 10:57 AM

I once changed a conti car interior heat exchanger before.
Didn't change the compressor.
But lost the digital climate control function.
Had to adjust the temp manually by a rotating rheostat.
Suddenly DAMN cold!!
Rainy day, need to turn the Ac switch off cos of freezing of the coolant pipes.
The heat exchange was almost double in size of the original factory one and needed the housing to be cut to make way for bigger size. Then they wrapped the in aluminium foil.
Done by a pro Ac guy called Alvin of Jool Ac at kuchai lama.
To test their expertise, even his apprentice knew what needed to remove, ie, dashboard, control panel, sensors, etc to get to the problem..
His place is always packed with cars..
Never out of work..
Sign of a great guy at work..
Like good restaurants are always packed.

This was back in early 2000, cost rm 1600.
Price of ori exchanger rm 1200.
Leave car there for a week.

Manage to retain the digital plenum control.
Controls the air blowing from front, demist, side and foot well.


This post has been edited by jtan.pdr: Sep 26 2018, 04:54 PM

For perodua, Ac not cold, chances are the compressor not functioning well...
My experience with perodua cars la..
But the good news is that there's plenty of rebuild ones all over Msia.
There's no Ac electronic control unit involved,ie, no climate control, ambient temp control, etc. So can't be control panel or control unit, or Accu to go faulty.
My 2 bits.

This post has been edited by jtan.pdr: Sep 26 2018, 05:07 PM

TS no longer around...

Eco car gearbox are absolutely the most stubborn in down shifting..
So I downshift just before I reach the hill and with the higher rpm, accelerate up the hill..
If not, then the engine will lug its way up the hill at low rpm where there's no power and the gearbox still refusing to downshift... Lol

Ya man..
What I'm trying to do by manually downshifting is to keep the gearbox (gb) from up shifting..
Happens when I try to modulate the accelerator up/down during the corner, but up hill on a straight road should be fine la..
Kind of habit forming... Especially when in a hurry..

Ya man..
I could almost say that the gb is sleeping on the job..
Hahahha haha!

fooooooh...!!! kembara ah...?
compared to the bezza 1.3 like night and day, especially the fuel consumption...
the gear ratios oso better suited for road driving, (auto)
bezza is a later design car and a monocoque style car.. but then again, u've driven an axia before, so the experience is almost the same, just back heavier cos of the boot... better balance compared to hatchbacks.

This post has been edited by jtan.pdr: Oct 12 2018, 01:29 PM