U should use ron97

nope..not a problem to me...my car require petrol as low as ron92..soo ron95 no problem...even perodua kancil...kelisa...can use ron92 if hav...no problem at all....

but i use ron95 petronas onli...ron 95 shell...really give me facepalm ...
performance drop really2 kaw....other than that...its okayh...

hmm, i'll try Petronas 95 then after this after reading so many give good feedback of its quality. but then again my bonuslink point no more liao..

not that Petronas 95 is good, but just that Shell 95 sux big time

TS from some petrol company ka? Ron97 sales drop recently?

how come ron95 use affect gearbox performance?

just nowadays too many car burnt issue MIGHT BE due to nowadays too many car accessories shop open and all act like pro installer tap wire here and there...today's car wiring system sometime is very sensitive if u tap the wire, its either the wire will get hot and caused flicker and the flicker caught up with the petrol fume thus trigger the fire burning the whole car...

it's the knocking problem that caused problems...

95 caused more knocking % than 97 and it can cause serious damage to your piston and block...

however this is depends on luck, some driver no prob at all but some did...

http://oldeloohuis.com/octane3.html

read the part "Knock Sensors And Ignition Retardation"

herm, this is the catch, i dunno what is honda's mechanic problems, but honda city runs in thailand n indonesia using ron 91 n ron 88. N in singapore also can run on ron 92@95. Even if malaysia is ron 92 with additive to make it ron 95(i dont think so), but it still higher than ron 91 n even higher than ron 88. I wonder why suddenly honda city in malaysia need ron 97?

New modern cars can retard its timing to coupe with the lower octane. I think its the ecu problems. Whether they dont want to claim it or any other reason. Loss of performance yes, but causing problems to engine, nope i think unless the ems has prob. Unless its equip with super high compression ratio performance engine like type r engine, but dont think so.

I think better ts go to other reputable honda service centre to check the probs. Maybe some forumers can help.

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Added on May 21, 2012, 10:27 pmherm, this is the catch, i dunno what is honda's mechanic problems, but honda city runs in thailand n indonesia using ron 91 n ron 88. N in singapore also can run on ron 92@95. Even if malaysia is ron 92 with additive to make it ron 95(i dont think so), but it still higher than ron 91 n even higher than ron 88. I wonder why suddenly honda city in malaysia need ron 97?

New modern cars can retard its timing to coupe with the lower octane. I think its the ecu problems. Whether they dont want to claim it or any other reason. Loss of performance yes, but causing problems to engine, nope i think unless the ems has prob. Unless its equip with super high compression ratio performance engine like type r engine, but dont think so.

I think better ts go to other reputable honda service centre to check the probs. Maybe some forumers can help.

This post has been edited by mat79: May 21 2012, 10:27 PM

Before this I'm using Shell so underpowered then I change BHP far better and more responsive compare with Shell.

i use on my car no problems ... though can feel the car no power abit , probably the knock sensor thingy kicking into action . lol

simple to think is like this

less knock = timing more advance = more power
more knock = timing retard = less power

octane is basically how well the fuel resist knocking.

higher the grade the more resistive it is.

just my 2 cents

Technically speaking, octane grade is how much the fuel can be compressed before detonating without a spark, which causes knocking. The higher the grade, the more it can be compressed before combusting without spark.

This is why the 1.6 Campro CFE engine has less compression ratio than the normal 1.6 Campro, to accomodate lower RON petrol in other countries.

This post has been edited by dares: May 21 2012, 11:04 PM

yes.. i lazy type so long ma

actually abt the cfe is not really accurate. turbo car has less compression ratio coz you pack more air in the same amount of space. so you cant compress it too much without it giving you other issues...

put some octane booster everytime u refuel

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

no problem. still working after 6 years. of course in terms of performance ron95 a bit inferior compared to ron97. but definitely using ron95 wont harm my p2 engine.

No problems with my Conti. Not even with the super aggressive E10 (10% ethanol) when driving in Europe. Actually E10 even fixed my car, the fuel gauge is working again.

But really, a good car that was designed for RON 95 shouldn't have any problems. Maybe Japanese cars aren't so good and require higher quality fuel? With the difference in fuel price who would want to use RON 97 if they can get along with 95? Except for petrol station owners perhaps who want you to buy the more expensive fuel.

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.

This post has been edited by dares: May 21 2012, 11:35 PM