Very confusing statements from ppl

Sky activ high compression. Need 97.

Many pump ron 95 say no difference esp now euro4.

But also some says min 97 some even go ron 100 otherwise sluggish and later engine cepat rosak (lol)

Mazda skyactiv owners experiment before?

r95 je la

not like u driving rx7/8

No problem running on Ron95.

95 ok la, but 97 petronas pro race is hnghhh

Refer to car manual. I am driving new Mazda 3. It says minimum RON95.

This post has been edited by kitchong: Aug 25 2021, 02:26 PM

Ron 95 would suffice. But 97 is better for long term engine health

Putting a bottle of cataclean and carbon clean every 10k km more economical no a.

lol

its holds true, the nut holding onto the steering wheel IS the weakest link

they built the engine to be able to run on 95, like larger valve to take into account of the carbon build up.

The car is tuned to be able to use RON95 la. Ask these pundeks to go f themselves.

is there really a practical difference between RON95 and RON97?
both seem practically the same to me.

a lot of people keep saying "RON97 better for engine health" but why? in what way is it better? that 2% higher octane level make any actual difference?

Min r95 if nak feel atas pump r97

Toyota > Mazda

Why not buy Petron RON 100?

your engine will tweak/adapt the timing according to your fuel ..as long as your user manual stated can support RON95

Euro 4 is just cleaner fuel ..but in term of combustion timing ..they are same


my 2 cents will be ..dont keep switching or MIX in between 95 and 97

engine take time to train and used to that fuel

frequent switching might cause minor knock if engine was not trained

This post has been edited by fantasy1989: Aug 25 2021, 02:46 PM

Mazda CX5 in Australia can take RON91 without any issue then why afraid to fill RON95?




Attached File(s)
 cx_5_digital_brochure.pdf ( 16.65mb ) Number of downloads: 58

higher RON will have higher resistance to burn

if you are having higher compression ratio engine + high resistance fuel = less power waste = higher performance

as the petrol take its time to get mix with air and fully compressed before burn

lower RON will have pre-ignition aka knock ..which meant the fuel burn before it fully compressed.


if your engine is low compression ratio (especially turbo-ed) .. then 95 and 97 gain will not be a lot

This post has been edited by fantasy1989: Aug 25 2021, 02:55 PM

U got so much money to dump into wasteful 97 meh

190k km mileage in my skyactiv and okay jer using ron95.

follow manufacturer advise cant go any wrong

City driving ron95 is good enough.. if you have deep pocket, may go for Ron97 or ron100 for minimum performance gain.
Other countries ppl only pump ron85

everyone says r95 enough but when I go used car shop, most mazda skyactiv car knock like no mother..

u buy car they no gip user manual ka?

Manufacturer said no need to change atf oil.. it atf oil can last lifetime of the car..

Personally recommending Petronas Ron95 and Ron97.

Tried Petron Ron95, noticeable engine knocking louder.

Haha kek many cx5 owners after 110k km and warranty ngam ngam habis

You won’t get any difference in terms of engine’s health by using 95 or 97, performance wise and efficiency? Yeap, but a minor one.

For a longer and healthier engine, service your car regularly.

They give you a link to download the pdf or use the infotainment for browse the owner's guide. Like volvo

Probably the used car dealership used ron91

Cepat rosak?
Lol
There is knock sensor.

110k km is the lifetime of the car

I have 2 friends who use only she'll vpower.. both have fuel pump issue. Claim warranty twice but still need to go for recall for the 3rd replacement.. haven't talk to them since MCO started if they still get fuel pump failure..

More importantly, pump at BHP.

Shell 95 x boleh..try to avoid at all cost

Shell 97 is good compared to other 97

my personal comment.. there will be always two sides of coin..

try to pump a full tank of Ron97 and try it urself.. notice on the performance and noise of the engine. If you dont feel anything then dont bother pay extra..

but technically, RON95 can be used.

you sure that sound is knock?

some petrol car cold start will have tak tak tak sound like diesel car

This post has been edited by fantasy1989: Aug 25 2021, 05:19 PM

Is it still happening after the Mazda recall program?
I never use V-power before, the most I use is Shell Ron97. But I heard many saying Shell petrol is clogging the fuel pump in the FB group.

I only stick to 97
Nothing else

Follow sticker..
Ron95 minimum... Engine ECU will compensate well...

when I received my car, it was pumped full with bhp r95... there is noticeable engine knocking sound during driving
i refueled with petronas r97 for 2nd tank and there's no more knocking sound, been pumping r97 ever since

If 97 more expensive by 10-30 cents ok lah syiok sendiri abit , now more exp by 70 cents, not worth it IMHO.

Read manual ler aduiii

If says min 95, meaning it can use 95 but will not perform like 97.

R95 lo.

ron404

just fuel up with RON95 will do, people complaining that they "feel" the engine is "knocking" were probably all impressions within their mind. the manifold set up in Skyactiv engines were specifically designed to eliminate these issues.

it may be correct that RON97 is better for engine health because they contain more "cleaners" so they are supposed to clean the valves, pistons, chambers etc better than RON95 but since all Skyactiv engines are direct injection, they don't really do much for the valves.

besides, you get a can of free deposit cleaner from the SC every time you send your car for the regular maintenance so that's that.

just fuel up with what your wallet allows you to.

Had a Mazda 3 (BM) 2.5L in Aus - manual say minimum 91, so I pump 91. Ok je.

But I also had a MX-5 (ND) 1.5L - that one I pump 98 all the way

Pokoknya, RTFM.

i didn't say book but user manual, digital also user manual what

TLDW: no difference

Yes but Malaysia Ron 95 and Ron 97 should be both Euro 4M standard edey.

“Free”

Is skyactiv engine even fast? Why need 97 or 100?

what so special about BHP? care to share?

Not everything is made equal

Yup.therefore, in term fuel cleanliness. both are similar

Just my feedback is ..dont frequent switching different RON of fuel..engine need to take time to adapt and adjust the timing

last time there is smart guy (my friend) who told ppl to mix half tank of RON97 + half tank of RON95 to get "RON96"

Engine will be like 95 95 95 97 97 97 95 95 95 97 ????

Engine: Apa Ranjiao.gif

This post has been edited by fantasy1989: Aug 25 2021, 06:57 PM

these skyactiv owners might be thinking they are using rotary engine lel

I smell high octane!!

follow car manual

high compression doesn't mean must be high RON fuel, the manufacturer can design the way air fuel mixes swirl in the cylinder and cylinder head shape to reduce the high temp points so still can use lower RON fuels.

If your engine has an EFI, it’ll adapt to whatever fuel you use

cx5 = 97 run smoothly while 140 to 160kmj. you feel no different if less than that.

95. a bit rough while reaching the speed but wont rasa until you too particular or too subjective with your throttle paddle

If go long distant i use 97 and rev more to clean the carbon abit..if bandar only, use 95...

ron95 no problem also

R97 is for water fish

+

This...just follow the car manual, will never go wrong.

book say what? Book say minimum 97 so u dont pump 95. Follow the book

last time got reason to pump Ron 97 due to Euro 4 fuel

Now.... no reason jor. Ron95 alsor Euro 4

if Ron97 they change to Euro6, I will pump back ron 97.

Skyactiv D here for 2 years never use the euro 5 still ok 😀

Msia downtune engine mah to adapt ron95 mah, tat time no euro 5 yet.
So yeah my cx5 running ron95 no problem, noisier but can run la.

This post has been edited by kennykong85: Aug 25 2021, 08:41 PM

Manual/refueling cap sure got mention, min. RON number

Just go for Diesel euro 5 since you want cleaner standard.

https://autobuzz.my/2015/06/24/mazda-shows-...-from-kl-to-jb/


HEre....Mazda all models SkyActiv using Ron95 shell for fuel consumption testing...


so...who say RON97?...please give statement evidence...don't spit saliva with covid all over.

Higher euro =/= good for engines
Only great for environment as less sulfur PPM
Sulfur is a great lubricant too and newer fuels 'expires' quickly compared to decades before

mixture of RON95 and RON97, go try it, i have been doing this for my scooter and kancil, fuel consumption wise, no difference
the only difference i can feel and see is the power/torque at high speed...

for example, if fully RON95, my kancil hard to reach 100km/h, even if it does, the engine roaring sound very loud and steering shake like hell
but when i put fully RON97, easily reach 110km/h and engine roaring sound less and steering shake normally like driving 80km/h....then maintaining in 100km/h is piece of cake...

then i tried to mix half tank of each RON (kancil is 20 liter), so 10 liter each, give some effect like its on fully RON97


to add and emphasize again
- higher RON number doesnt mean saves fuel

yeap, free.

why? are you forced to purchased it?

No need book lo just look at the fuel cap enuff d. U first time drive car?

This post has been edited by ridox_orimabu: Aug 26 2021, 03:15 PM

my only reason when r97 was below rm2 last time

now only pump r97 when i want to redeem points