Can our Starlets take Ron 92?

[Forrestcat]

Hi all bros,

Just curious can our starlets take Ron 92 grade petrol?

 

Cheers

Forrestcat

[Genie47]

Yes if you mechanic tunes it to accept RON92. If he advanced the ignition too far forward, it will still ping with RON98.

[Forrestcat]

Hi Bro Genie47,

My mechanic never say anything about petrol lehz....

Since i bought the car 2 months ago till now,

the car was never tuned......

Bro Genie, when the car pings, how do you tell?

[Ody_2004]

u hear ting ting ting some when u release accelerator.

[Ody_2004]

or ting ting ting sound in certain rpm band.. abt 3k to 4k..

[Forrestcat]

Hi Bro Ody_2004 & Genie,

Tks for yr advice!

Btw do u guys happen to know if

our cars have Catalytic converters?

I asked my mech just now,

he says all carb cars don't have.

[Genie47]

Actually cars of that era don't have. Even the G7 Gli rolla don't have even though it is an EFI car.

[Steam]

Hi all bros,

Just curious can our starlets take Ron 92 grade petrol?

 

Cheers

Forrestcat

 

definitely yes!

i am on RON92...and even leaded patrol during those days.

[Dionyeo]

the 1E works best with Ron92 =]

[Kyojin]

yes, i have used 92 to 98. only thing is that you need to retard the timing if you want to use 92. very easy to hear... not really "ting ting ting" but it sounds like a Milo can with some marbles and you shake it really hard. that's how it would sound like under the bonnet.

 

LET GO OF THE ACCELERATOR IMMEDIATELY.

 

it can happen at any RPM.

 

Bro Ody, pinging usually comes on 3-4k RPM for our Webers because that's right about where the idle circuit is transiting to the main circuit and sometimes the transition gets lean.

[Viceroymenthol]

You know in the USA, most gas stations have only 87 and 89 RON. A few have 91 RON. And all sorts of cars, from Civic to Camry to Cadillac to Viper to Mustang to 6 series and Mercedes SL also use these grades of gasoline (US term for petroleum). In the US got no 10 year COE rule, no PARF rebate kind of sh1t, and cars survive until 15-20 years or more. Some 15 year old Mitsu VR4 or Supra turbo can still achieve 4 second 0-60mph (0-100kmh) times. So there is no evidence that lower RON will spoil engine after long term use. Kinda makes you wonder why we in Singapore use such high grade of petrol on 1.6 litre Jap cars then scrap car and engine after 5 years.

 

My opinion is that the petroleum companies in Singapore, including US oil companies like ExxonMobil (Esso and Mobil), Caltex (Chevron and Texaco), Dutch like Shell, local SPC, are all scamming us to get higher margin on their oil. Knowing full well that Singaporeans are super siao-on about their cars (ie:- car wash 3 times a week, wax and polish, zhng until damn chio, etc), they are taking advantage of us.

 

My opinion is that grade of petrol makes little difference to performance and maintenance.

[Viceroymenthol]

I am not saying that 95 and 98 RON in Singapore are fake, but really, our cars do not need such high grade of petrol. And to oil companies, refining petrol to 89, 92, or 98 RON does not cost them a great difference in refining costs. but they are CHARGING you a big difference to purchase those high RON petroleum.

 

Just my 2 cents.

[Ody_2004]

so far i din notice pinging on my starlet. My 2 corolla G7 ping at 3k to 4k. no way to tune oso..

 

My fren vios oso ping.

[Friendstar]

bro...

US are using a different kind of measurement

 

they dont call it RON.

[Forrestcat]

Hi Bro Kyojin, tks for yr reply!

I just popped by to ask my mech,

he is using 92 on his "ep70".

He told me no problem, can take 92.

Will try 92 the next round and feedback

[Kyojin]

yea, mine used to ping when driven hard. but it's gone now after timing change and adjusting the carb.

 

vios ping??? he definitely has something wrong. EFI shouldn't ping, esp if no mods to ECU, unless he has really crap petrol.

[Kyojin]

US has a different method of calculating octane. US uses the AKI formula while places like Sg follows the RON formula. they contain the same number of octanes, but the number is different.

 

also, higher ocatane petrol tend to get more additives. so on top of paying for additional refining costs, you are paying for the additives - and of course advertising fees.

[Kyojin]

sorry another thing to add. many cars now require at least 95 RON etc, so your points about how grades of petrol makes little difference to performance and maintenance is rather sweeping.

 

there are situations where octane grade makes immediate difference. for example, turbo or high compression engines require higher octane petrol. also on cars without knock sensors, engines are sensitive to petrol grades.

 

so please don't mix your personal conspiracy theories with fact...

 

that being said, i believe that you do not require more expensive petrol than your owner's manual suggests. so if it says 91, then 92 would work. if it says 95, then use 95. simple.