Oh my farking god.

I read 2 pages of this thread and am completely astounded how completely ignorant some people are and yet claim to be 'well informed'. Thank god for the smarter few towards page 10/11/12 otherwise LYN discussions will be going down the drain.

Claiming RON92 + additives and later selling as RON95 is pure stupidity. Oil & Gas companies don't have shit for brains as some forummers do. Additives cost more than the base oil to make the petrol so it wouldn't make dollar and sense to sell RON92 on steroids and not to mention the lawsuits that'll follow filed by people who'll claim false advertising or something. Vpower Racing is RON97 + additives. Why is Vpower Racing so much more expensive? Because of the additives.

Jeez.

And RON95 causes detonation??????????????? Do you even know how an engine works? Ignition timing specifically? Or for that matter do you know what detonation is?? Or are you just trying to sound smart because you're coming across as a wannabe ignorant fool. Stop saying stupid things while you still can.

Let me ask those who think RON95 spoils their engines a simple question, do you know what is compression and how it affects the engine?

In M'sia, apart from exotics, only a few "affordable" cars must use RON97 otherwise they'll get knocking big time. The Civic type-R, Megane-R, Suzuki Swift Sport and any high compression engine car.

As for hotter engine - colder aircon, there is logic to this statement. When the engine is hot, the fan is turned on which effectively cools the coils and radiator therefore making the aircon colder.

This post has been edited by izso: Aug 1 2012, 11:23 PM

I would love to see the evidence proving that RON95 can "cause damage to our engines". Because then I can sue the company I work for and earn millions in cash and live a fat happy life forever.

Please understand RON first before making general statements like that which make you look ignorant.

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Added on August 2, 2012, 5:58 amWho said Singapore only sells 97? They used to have 92 but that later changed to 95. 97 and some stations have 98.



AIYO.. this is getting tiring. USA still uses RON92 and below. If not mistaken the "regular" they talk about is RON88. "Premium" is RON92.

Petrol is petrol. How it burns is what is important. RON95 is easier to ignite than RON97. So fiddle with your ignition timing if you experience knocking. Otherwise please shut up and save yourself embarrassment from saying RON95 destroyed your life. The only petrol that is truly different in M'sia is Vpower Racing. Why? Because it has a lot more expensive additives. Oh btw, it's RON97 too in M'sia. In Singapore it's RON98.

Anyone else claiming RON95 destroyed their aircon/engine/tyres/power windows/etc will get more trolling from the truly knowledgeable ones here so please go do some research first before claiming RON95 destroyed your car.

Like I said in my earlier post, unless you own a HIGH COMPRESSION motor, RON95 will do nothing to do your car unless you have a fuel hose leak... then that will guarantee you'll burn with your car and do us all a favour by removing you from this thread.

This post has been edited by izso: Aug 2 2012, 06:00 AM

I would love to do this. But it would be quite redundant and expensive.

Most modern cars these days need time for the ECU to adjust to the octane differences. Pump in RON95 and give it a day or 2 to adapt. Go dyno.

Then when almost empty fill with RON97 and drive around until it's almost empty then fill up with RON97 again. Go dyno.

That way the ECU will have plenty of time to adapt and it'll be close to fair depending on the conditions you go for the dyno.

These days people think the ECU adapts instantaneously... it doesn't unless you reset it and force it to relearn there and then or program it (if possible) to utilize the octane differences.

Can someone shut the conflicted people up and carry on with the discussion? Seeing all this mud slinging in every damn thread is getting goddamn tiring.


I don't know any workshop in KL that has an engine room. However if you're talking about dyno-ing the actual car itself on the differences in performance, I am game.

Caveat - both my cars take at least a day to adjust itself to the petrol for some reason. It's not immediate. So it'll be minimally a 2-day dyno effort.

On some cars the responsiveness is apparent. But on most normal 'standard' cars, it's not. Some cars meaning those higher than average compression setup cars but less than those high compression engine cars.

But like you said, in most cases it's negligible. Unless you've been driving the same car in exactly the same conditions (same car wear and tear, same roads, same potholes...) and suddenly you change the petrol and you say it feels different, then perhaps... it's placebo? A very strong placebo. Humans are not creatures of change and most of the time are unwilling to accept change until it's forced onto them.

It's the additives in the fuel brand that makes the fuel.