When we go to petrol station , there is 2 kind of petrol we can pump. The first type which is quite commonly use is charged at RM1.920 per little , another type which is cheaper. The more cheaper petrol is leaded?

My question is .. what kind of car can use those cheaper fuel ?

I am using an old Toyota Corolla 1.5 DX
using 3A-U engine and it is super petrol drinker. It sucked Rm0.21 per KM I am just curious is my car suitable to use the cheaper petrol ?

What is the disadvantage of using those cheaper petrol

Sorry for my n00bbess If this topic has been posted before I want to say sorry , because I don't know what is the keyword to search.

Did I miss out anything ?

normally i pump the RM1.92 per liter, or the V-power RM2.15 per liter..
the less that than i dunno much. which pump station did you go?

hurmm, since your car eat more fuel, 3A is the carburetor one, why not changing to injection? got choice 4AGE 16v or 20v.

I'm using 4AGE 16v in my LE, great Fuel Consumption long journey. give more power also

petrol RM1.92 =RON 97
petrol RM1.85 =RON 92

both are unleaded.
no more leaded petrol.
Shell V-power Racing =RON 97 petrol + fuel additive + good marketing gimmick

shell v-power racing... i wonder if malaysian cars (proton) need that high RON fuel.... as far as i know JDM cars do need higher RON fuel to extract more power.... but if ur engine dont need it, pumping in more expensive fuel also feel nothing...

I hoping I could get a clear answer , what happen if I pump the RON 92 petrol

What are the difference between 92 and 97? I just did some google search and came across this site http://www.monsterblog.com.my/2006/07/25/r...his-ron-person/

now the problem is .. is my engine is made for RON 92 ??? I don't have manual for this car because this car is older than me futhermore my family bought this car 2nd hand

This post has been edited by wilson88: Dec 6 2006, 08:14 PM

I think RON 92 is RM1.88

Good question. If you cannot find any document on your car, then just go for RON 97 since the price difference is not that great.

You have to look into your car's manual to find that out ( provided you still have it ) other wise you have to ask around, but usually, japanese engines require a minumum of RON 95.

If you use the 92 stuff, you would probably hear a lot more noise coming from your engine when you go up slopes ( knocking ) and might suffer engine damage ( worst case scenario ).

Your engine should be quite economical.

I think that only applies to manual Non-EFI cars

Guess I will stick back to Ron97 since it don't save much. Anyway my car is not economical , maybe u consider 0.21/km is cheap

and what makes you think his car thats at least 30 years old has one ?

absolutely correct.....

yup....why waste money when makes no difference.....but i believe different people has different opinion

better stick back to ron97......by simple calculation, you say you use ron 97 get 0.21/km means using ron92 at rm1.85/L only gives you 0.202/km --> you save about 0.8 sen per kilometer --> you need to drive 1000km to save RM8.

how long do you take to drive 1000KM? 1 month? if one month that means you save RM8 per month.

just helping you decide mathematically.

I think it's time for some major overhaul?

Have you checked whether your spark plugs and sparkplug cables in good condition?

last time when i drive the iswara non lmst, i also buy the rm1.88

no power...engine got weird sound...

then change to rm1.92 1...got power back and engine no more weird sound

I just had my service a month ago , my sparkplug should be in good condition

From what I understand.

Ron-92: Normally recommended for cars that r more than 30yrs due to its lead content to protect the engine's internals (s'thing to do with reducing friction). But I did read s'where that cars in this category can also use Ron-97 fuel and above but it is recommended to top up with some kinda engine additive to replace the lead content.

So, since u said ur car is a Corolla DX, I guess its OK to use Ron-97 coz my 82' Sunny has been using using it for ages.

Btw, a relative of mine whom previously owned 2 Corolla KE70 GLs (same chasis as urs but has bigger black-plastic covered bumpers) mentioned that DX consumes more fuel than GL. But I remembered that his GLs fc were considered OK if compared to my Sunny. Anybody care to clarify this?

last time i even heard city idsi can use the ron92

sure GL is having better fuel consumption because of the engine. I am running on 1.5 while GL only 1.3

I refering the same corolla series I am driving. I seldom see one car similar with mine on the road. I don't know why

It was a refurbish car

Leaded petrolis banned all around the world. RON rating has nothing to do with having leade content or not.

Fuel injected cars can run RON 92 petrol but then you will experience a drop in power due to ignition retardation to prevent knocking.

Your old corolla has a pushrod engine if I'm not mistaken. Check all the tappet clearences and if your engine has never been overhauled for the past 10 years I think its high time you do so.

If you engine was meant to run on leaded petrol your valve seats have probably been worn so badly they have sunken in. So check them too.

as far as what i understand... fuel does not related to engine friction and stuffs, but engine oil does. i believe what you mentioned was actually related to engine oil, not fuel. old engines are recommended to run thicker viscosity due to the gap between engine internals.