beats me, i have the same thought too. But this really happen and even 2 of my friends car. merc forgot which model and the other one is vios

yep..turbo already have high pressure. so the compression ratio must be lower compared to na engine. thats why if want to bot na engine..need to use low compression piston(if the boost is high).

According to the Lotus Proactive Magazine 

http://funtastickodesign.files.wordpress.c...ssue_43_web.pdf
But you are perhaps correct as the fact that it is a turbocharged engine was probably also taken into consideration.

I loled when know City must drink ron97..

imho, my neighbour uses Honda City...always fuelled Ron95...

so far no probem at all..

abt the same story oso. if u put a high com piston and put a low octane like ron 88 of cuz knock lo.

---

Added on May 21, 2012, 11:38 pm
agreed.. there is fundamentally smtg wrong with TS car...

And how the heck does fuel damage the throttle body? How can the fuel damage any parts that it does not come into direct contact? Might as well say that by just driving the car on the road the paint is being worn off by using RON95 petrol.               

Yeap.. something else is wrong the TS car.. and not the fuel.

Hi, I'm not sure whether has this topic been posted here before. I have been hearing stories about how bad RON 95 is. People been telling me that this petrol will easily caused car catch fire. This is why now days we have been seeing and hearing allot of car caught fire. I realized that allot of car caught fire victims ever since RON95 been introduced.

I even hear stories like our Ron 95 is not a real 95. It was from the ron92 that added addictive to produce like Ron 95 which can harm the car engines and parts.

I was using RON95 for my Honda city for about 6 months and my car slowly develops problems. Problems like throttle body and throttle sensor making my car chocking.  Car behaving weird and when sent to HONDA, the machenIC told me not to use ron95 as it will wear out car parts and damage easily. I experienced difficulties of gear shift. Feels like it dO not want to shift to the next gear, lagging or something. The engine raw. It's louder than before and felt lack of power. So when mechanic advice to use rOn97. Everything works find now. Gear shifting is smooth and no more weird behavior like car chockIng engine dying. Engine is quieter like before.

I would like to hear what are your opinions

very no make sense wei...

---

Added on May 21, 2012, 11:36 pm
if u dont boost that high dun need to change low com piston. thts y ppl wit BOT feel more power. u got more air + high com NA piston

my cousin husband....honda city Vtec CVT wan..pakai ron 95 still running strong..urs car really ada prob liao

I will avoid Shell 95, other 95 are okay