I have been using Ron 97 all the while in my rusty car. Then when price went up, i started to use 95. Just need to calibrate the carbs and i'm good to go. Its already 3 years right? No problem so far. But i hate Petronas. 2 times i used this fuel for 1 week, it killed my fuel pump and clogged my fuel filter. Basically the fuel is too clean and abrasive. Old cars do not agree with it. The same thing happened again with Shell. I tried it because of Bonuslink. But have always been Mobil or Esso for me.

How does RON95 relate to oil leak problem? What kind of oil? M-oil?

This post has been edited by feekle: Jul 29 2012, 09:57 PM

Thanks for your reply. I haven't done my first service yet. I'll call the salesman tomorrow and ask what kind of petrol he recommends. Since the RON97 is cheaper now and the RON95 is that problematic. I think probably I'll start using RON97 for the next refill. So far for RON97 Shell is the best right?

bro newly launch local car i dont know how the engine will behave on our ron95 .. maybe they already tweak something to sustain the ron 95 combustion ??

p/s:no offence to local car owner.. my first car also local ok ..

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Added on July 29, 2012, 10:08 pmmy friend (from oil company) suggest to me that if want to use ron95 also can but every 2 full tank of ron95 use 1 tank of ron97 ...

and the forum topic is about ron95 caused damages... from my experience is YES ron 95 cause many problem and damage to engine.. even some on the internet related since the intro of ron95 more car caught fire on the road then previously .. this part i dont know ...

some will say no problem using ron 95 but that your experience lar.. at least i 'm not saying this person tok kok ..

but yet if u can afford to use ron97 then why have to use ron95 ? i myself use ron97 since my second car . my first car use ron95 change engine 2 times later sell ..

indeed ron97 is better then ron 95 if not then why on earth got so many fuel ron 92-95-97-100-101 ..

anyone remember the shell v-power racing which is selling at 3.10 perliter .. that 1 is ron100 and yet the price difference only 40cents from 97 to 100.. but yet 95 to 97 price difference is 70cents now..

This post has been edited by keanutan: Jul 29 2012, 10:08 PM

yeah, but your point of long usage of ron 95 causes problems with engines doesnt hold water since i've been using ron95 on my dumb vanilla camtakpro gen2 for the past 3 years, and i've no oil leaks, in that 3 years, the car has racked in at least 100k,collected almost 2k in speeding summons and after 220k on the clock can still give a 'decent' 300kms for 50 bucks with 70% jam .
oil leaks and engine problems are usually due to not keeping up the maintenance of the car properly of being cheap on certain parts and ignoring the proper mileage change for wear and tear items as recommended by the manufacturer.

some choose to buy the cheapest engine oil in the market, and then whack a 10k oci. or for those who drives a jap, and their manufacturer oci is 5k, just because using a 200 ringgit fully syn oil doesnt mean the engine oci is now 10k, it is still 5k. the oci doesnt follow how expensive the oil we use, but follow the manufacturer spec.

some already notice some minor leak, but dont want to get it fixed. sometimes, its just as simple as changing the head gasket because, believe it or not. those things wear off as well. some choose to do engine wash ( when its not recommended by the manufacturer) . the engine super hot. go spray cold water on it. do it often enough, sure something will give away one...


i doubt ron95 causes engine oil leak and all the other problem...

well men like what i say u experience no problem on ron 95 me vise versa my first satria no problem before launch of ron95 that times only use ron97 .. no problem engine smooth no oil leak nothing ,, after ron 95 started using it after 1 years oil leaking gasket blow .... etc .. change engine after 1 years problem come again gasket not blow engine oil top up every 2 weeks.. my service is 5 k with semi synthethic shell . sell car ..now
my wife city also same problem service also not using cheap oil .. but semi syn oil on every 5k .
now used new car only use ron97 .. while that my experience .. maybe some will say both of my car got problem already .... but then i just want to use ron97 instead of ron95 give less problem ...before the lauch of ron95 ..

One thing I'd like to know is does RON97 definitely perform better than RON95 for long journey travel? I usually use my second car for working. I only use my c-class for weekend and outstation. After read what you said, I'll just go for RON97 since I don't really use my car daily and as long as it helps to keep the car safe from damage. Its definitely worth!

Mine only pumped BHP RON95 and My green oil.
Engine more quieter, fuel saving, cleans vitals part too.

better be safe then be sorry .. while some believe ron995 is ok no problem some not .. me choose to use ron97 for now .. because if the fuel price go up untill rm5 perliter then maybe i will started to use ron 95 then if ron 95 still available lar..

you will generally get better mileage when u use higher ron. if you dare, you can try pour 10 litres of v power racing, and then drive as you normally drive, and see what mileage you get before the empty tank light comes on. then pour 10 litres of vpower and do the same. then lastly pour their ron95 , same amount(10 litres) and check the mileage. U will notice that v power racing would give you the best mileage. ...
for your c class; pour 97 lah since it only runs during weekends.

I havr covered more than 200,000km. My savvy has clocked 150,000km. 1st few years of ownership was using RON97 until gov introduced RON95. Engine still going strong and can achieved top speed. The only downside is FC worse a bit.

You sound like RON97 die hard fan as you give the budget till rm5 per litre which means you will never change to other RON. Your thread made me recall that sometimes my C-class likes chocking when speed up from 40 to 100+ when I get out from the petrol station in highway, I didn't reliaze any problem with it and I thought it was my driving style problem. Until now, I think it might could be the RON95 problem.

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Added on July 29, 2012, 10:48 pmAiseh TS. It sounds like poisoning the car more than testing to me. lol. The car is still new to me and I'm very careful at using it. Maybe after a couple of years, I might use your method to test. hahah

This post has been edited by tcken: Jul 29 2012, 10:49 PM

[quote=tcken,Jul 29 2012, 10:46 PM]
You sound like RON97 die hard fan as you give the budget till rm5 per litre which means you will never change to other RON. Your thread made me recall that sometimes my C-class likes chocking when speed up from 40 to 100+ when I get out from the petrol station in highway, I didn't reliaze any problem with it and I thought it was my driving style problem. Until now, I think it might could be the RON95 problem.

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Added on July 29, 2012, 10:48 pm

not diehard fans my old car still using ron95 new car use ron97 all the times .. before get my new car .. my old car if go long distance or genting hihi will pump ron97 bcos engine more smooth and power..

not ts. but i did suggest you to stick to 97 for your c class maa..

Do you even know what the RON number stand for? I can bet 99% dont even know what it is for. And to those idiot that say using RON95 causes your car to catch fire easier, please go shoot yourself in the head before you spread more of your stupid facts on the internet.

RON stand for Research Octane Number and it is an indication of the fuel's resistance to auto-ignition or better known as pinging. Pinging occur when the air/fuel mixture ignites prematurely in the cylinder before the piston reaches TDC. The higher the fuels RON number, the better the engine performance as the ECU does not need to retard the ignition of the fuel mixture too much to prevent premature ignition.

EFI engine have no problem as their ECU can auto-calibrate but carburettor engine might need to be retuned to take RON95.

No such thing as faster engine wear and tear if using RON95. But what I can see among all the fuel companies, BHP and Esso/mobil fuel perform best cause they add alot of friction modifier additive. Just a tip to save you money.

This post has been edited by 779364: Jul 30 2012, 12:02 AM

hello mr the most clever person on lowyat forum .. we all the dumb person just want to let u know this is just about will ron 95 caused damges?? not about who clever u or me or others people .. u continue to support u believe i continue to use my ron 97 that all .. i can afford to use ron 97 and think ron95 not good enough for my ride .. if that hurt ur wallet then sorry .. it my money not yours.

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Added on July 29, 2012, 11:32 pmu copy from wiki about ron ah mr the most clever person in lowyat

This post has been edited by keanutan: Jul 29 2012, 11:32 PM

You can choose to continue being ignorant. No one is stopping you cause in the end, you are the one paying for the fuel. I work in the downstream Oil & Gas business so I know my facts. At least backup with facts and dont just rely on your gut feeling. I think I spoke too much, better to keep it to myself.

if you think I copy from Mr wiki, then so be it. I dont need to prove anything to people like you

This post has been edited by 779364: Jul 29 2012, 11:36 PM

now u say u work at what downstair of oil and research ??? ya spoke too much later get sack for telling much more about fuel ?

u say i choose to continue ignorant vise versa i also can say that to u . i'm happy with my choice but sad now cannot get ron100 on shell already not on my area..

nest times dont just come out from no where to say people are idiot and should bang their head ?? have some manners . u got ur believe i got mine .. i didnt boom those people who use ron95 saying they are **** my old car still using ron95 only my new car i use ron97 all the times ..

Shell V-power racing isnt rated as ron100 iinm. In malaysia.

Wow suddenly this topic become hot again. Ok guys despite all the theories, do you realizes (some of u will shoot me for this question). Using Ron 95 your engine bay gets hotter? I meAn just stand infront of your car after a drive. U will be surprise to feel the very warm heat that I never experience before when I was using 97. I have been using 97 for a year. Then try out 95. No doubt 95 makes the the engine raw and no power and sometimes I can hear my engine pings. I have been using 95 for 6 full tanks. I can tell that 95 is not a pleasant fuel to drive. It just make too much noise and sluggish. In long run it may damage my car. After using back 97. Everything goes back smooth and normal. Oh yeah and the engine bay warm temputure. When back to normal. No more very hot sensation.

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Added on July 30, 2012, 1:38 amIs it 98? That is what I heard.

This post has been edited by alxdc: Jul 30 2012, 01:38 AM