Corolla BigBody GLi 4afe engine fuel octane rating ???

[Dezaremos]

Yung Corolla 2e 1.3 Carburetor ko, Petron XCS or Shell V-Power ginagamit ko kasi sensitive daw sa octane yung mga Carburetors, mas maganda ang andar basta on higher octane fuels ...

Pero I don't have any idea what to use now on my Corolla Bigbody GLi EFI engine .. Marami akong nakitang mga Vios nilalagyan ng sticker ang gas tank cover ng Unleaded which means unleaded lng kinakarga nila .. Marami ring taxi driver nagsasabing nakaka clog daw ng fuel injector ang mga higher octane na fuel kaya unleaded lng din ginagamit nila .. Sabi din ng iba, hindi na daw kailangan ng higher octane para sa mga EFI engines kasi kusang nag a-adjust ang makina kahit mababa ang octane ng fuel mo ...

Right now, I'm just using Shell Fuel Save which is a regular unleaded fuel.

Magbabara ba fuel injector ko or magkaka problema ba auto ko kung mag change ako ng V-Power or XCS in the future ??

[saksidriver]

recommended octane rating sa 4afe 93 RON. basta nasa stock timing ang distributor, hindi totope (mag knock) yan. unleaded? lahat na ng gasolina ngayon unleaded. mapa 93, 95, 98 100 RON. gusto mo maiwasan magbara ang fuel injector mo? sundin mo ang nakalagay sa manual na palit ng fuel filter. usually every 80k kms. pero depende pwedeng mas maaga. hindi maselan yan 4afe sa gasolina basta nasa tamang timing ang distributor.

[saksidriver]

sayang lang pera mo kung mag 95 RON ka kung 93 RON lang naman ang recommended. pero mura naman gasolina ngayon eh. hehe. depende sayo wala masama kung mag mataas na octane ka, ang masama magkarga ka ng mas mababa sa minimum na recommended para sa makina mo. so walanf magiging problema kung mag XCS or mag blaze ka pa. yun lang nga sayang din yung pera magkano din yun pag nag full tank ka.

[Dezaremos]

sayang lang pera mo kung mag 95 RON ka kung 93 RON lang naman ang recommended. pero mura naman gasolina ngayon eh. hehe. depende sayo wala masama kung mag mataas na octane ka, ang masama magkarga ka ng mas mababa sa minimum na recommended para sa makina mo. so walanf magiging problema kung mag XCS or mag blaze ka pa. yun lang nga sayang din yung pera magkano din yun pag nag full tank ka.

93 RON ang recommended ??? Pano yan eh ang kinarga ko ay Shell Fuel Save which has a 91 RON rating .... Anong mangyayari sa makina ko ngayon na nka Fuel Save ako ???

[saksidriver]

wala. next na pakarga mo mag 93 RON ka na lang. hindi masisira yan makina mo kung 91 lang ang nakarga mo. unless long term and long term din ang pag tope. masisira lang yan kung diesel ang naikarga. actually hindi pa nga eh. haha. ok lang yan. dont worry.

[1D4LV]

wala. next na pakarga mo mag 93 RON ka na lang. hindi masisira yan makina mo kung 91 lang ang nakarga mo. unless long term and long term din ang pag tope. masisira lang yan kung diesel ang naikarga. actually hindi pa nga eh. haha. ok lang yan. dont worry.

ok lang yan bro kung wala namang knocking...... otherwise, shift to a higher octane.

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wala. next na pakarga mo mag 93 RON ka na lang. hindi masisira yan makina mo kung 91 lang ang nakarga mo. unless long term and long term din ang pag tope. masisira lang yan kung diesel ang naikarga. actually hindi pa nga eh. haha. ok lang yan. dont worry.

ok lang yan bro kung wala namang knocking...... otherwise, shift to a higher octane.

[pdspd]

To prevent fuel/spark knock(tope) or engine detonation.use a higher octane rating fuel(95+). The higher the octane number,the better able the fuel to resist detonation. Hindi porket mura,eh makakatipid ka.performance and fuel efficiency wise.

[granro01]

EFI's are designed to accomodate new ethanol based gasoline fuels. Ethanol fuels are not compatible with carburated engines as ethanol really loves moisture resulting to carburator cloggings.

Wheather hi-octane or low will depend on your engines compression ratio. a compression ratio of >11 will benefit on hi-octane. <11 better to use low octane as there are no significant gain on the engine whilst paying more on the pumps.

[jaypee10]

okey naman sa akin..hindi naman kailan nagbara.
basta yearly nagpapalit ako ng fuel filter,kahit malinis pa siya,,

unleaded lang kinakarga ko..saka dapat mag stick to one ka lang ng gas station.kung sa shell pakiramdam mo na maginhawa makina mo.dun kana lang palagi mag pa refill ng fuel mo...

[viraccat]

I have a 1992 Gli and in the owners manual, toyota recommends using 95 RON gasoline.

[Dezaremos]

I have a 1992 Gli and in the owners manual, toyota recommends using 95 RON gasoline.

sir can you take a picture on that page of your manual where it recommends 95ron .. pls picture and upload it in a reply ....

[dr. d]

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i have seen manuals that indicate a recommended 95 octane rating, but in the same paragraph also claim that the engine can do 91...
for this corolla, 95 + 91 dibay dibay 2, equals 93, which is what the literature says..
i had a (non-toyota) EFI car once.. the casa pasted a correction over the manual's recommended octane rating; the old was 95 and the paste-over said 91.
i suppose it just means, the EFI makes adjustments to accomodate the octane rating of the fuels being used..
for while in the olden days, octane rating was "equated" with fast and upscale, today the lower octane rating, the cheaper the better for the consumer.. times change...

btw... dezar... pls do not ask me to take pictures and upload.. nabenta ko na sila..
heh heh.

[Dezaremos]

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i have seen manuals that indicate a recommended 95 octane rating, but in the same paragraph also claim that the engine can do 91...
for this corolla, 95 + 91 dibay dibay 2, equals 93, which is what the literature says..
i had a (non-toyota) EFI car once.. the casa pasted a correction over the manual's recommended octane rating; the old was 95 and the paste-over said 91.
i suppose it just means, the EFI makes adjustments to accomodate the octane rating of the fuels being used..
for while in the olden days, octane rating was "equated" with fast and upscale, today the lower octane rating, the cheaper the better for the consumer.. times change...

btw... dezar... pls do not ask me to take pictures and upload.. nabenta ko na sila..
heh heh.

so you mean i can use a 91ron octance fuel on my EFI corolla bigbody ???

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i have seen manuals that indicate a recommended 95 octane rating, but in the same paragraph also claim that the engine can do 91...
for this corolla, 95 + 91 dibay dibay 2, equals 93, which is what the literature says..
i had a (non-toyota) EFI car once.. the casa pasted a correction over the manual's recommended octane rating; the old was 95 and the paste-over said 91.
i suppose it just means, the EFI makes adjustments to accomodate the octane rating of the fuels being used..
for while in the olden days, octane rating was "equated" with fast and upscale, today the lower octane rating, the cheaper the better for the consumer.. times change...

btw... dezar... pls do not ask me to take pictures and upload.. nabenta ko na sila..
heh heh.

so you mean i can use a 91ron octance fuel on my EFI corolla bigbody ???

[dr. d]

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so you mean i can use a 91ron octance fuel on my EFI corolla bigbody ???

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so you mean i can use a 91ron octance fuel on my EFI corolla bigbody ???

i mean, you should take pains to read your owner's manual, before you attempt to do something you will want to blame others for, later on.
if your manual says you can use 91 but you insist on throwing good money away by using 95, then so be it.
if your manual says 95, but you insist on 91... you are in charge of your life.

in my example above, the (my) manual clearly stated i may use 91, but recommends 95. i thought that meant, the EFI can make adjustments for as low as 91, but if i want to maximize the engine's performance, i should use 95.

so again, read your manual, sir.

alam nyo... kapag may nangyari sa kotse nyo at ang dala-dala nyo sa casa ay print-out from this thread...
pakitaan lang kayo ng owner's manual ng casa...
sinong paniniwalaan ng korte?

ohhh...! you have no manual! (from other thread).
you have several recourses:
1. look for one on sale in the internet.
2. borrow from an owner and xerox it.
3. virtual manual via internet.
4. tsikoteer here has one and is willing to sell it to you.

btw, in the internet address i saw, glis have a 93 octane rating recommendation. that means, 95 is a safe bet for you for now.
medyo mahirap kasi makahanap ng 93 octane gas...
when the engine wears and tears and builds up soot deposits... the actual octane preference changes.. so now, for lack of any info regarding your engine, do 95 and observe if the engine pre-ignites.. if it does, mebbe you should go to a good mechanic.
again, good luck.

good luck.