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Thread: Best Fuel for Corolla Grande 1.8 CVTi " Premiereor Hi-Octane"?

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    Default Best Fuel for Corolla Grande 1.8 CVTi " Premiere or Hi-Octane"?

    I just bought brand new corolla Grande 1.8 CVTi, I'm a bit confused which fuel should be best for this car "Premiere or Hi-Octane"? I have heard that engines do not burnt Hi-Octane and leave few particles in shape of carbon, Is it true? Is this CVTi Corolla burn Hi-Octane properly? In manual of this engine suggests Octane grade 87 or higher, does it mean Hi-Octane will be fine for this? Any advice is welcome.

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    Ask the pump guy to put high octane for Rs 1500. Then ask him to fill the tank with normal super petrol.

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    Why not fill full tank i.e 55L with Hi-Octane only? Any issue or good reason behind this " 50-50" Logic?

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    My mechanic - a sharp, intelligent and hard working guy stopped me from using high octane as i had laser irridium plugs in my honda city which are supposed to be economipon fuel whereas high octane is supposed to be consumed more for better perfomance. The car was giving me trouble and change in fuel sorted out my problem.

    Since grande has dual vvti which i think again play its role to consume less fuel therefore i guess only high octane will not be suitable for this. Mix it with super.

    Also, you need to check who is selling best super petrol in town.

    Please note i am not an engineer nor an expert on engines. I just narrated my experience. You should also discuss the same with ur authorized toyota mechanics. Or let other pak wheels member to reply.

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    you have to mix them... the cars would start knocking pretty soon if you don't... just about 25% would be enough... no need for half and half...

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    @zee786

    Grande doesn't need high octane, its meant to run on regular 87 petrol.

    High octane is a blending component; it's meant to be mixed with regular petrol to raise it's octane number.
    _ 22 km/l from '03 VTi automatic, with plenty of room for improvement
    _ How to hypermile: http://www.cleanmpg.com/community/index.php?threads/1510/

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    Quote Originally Posted by ZainMahdi View Post
    @zee786

    Grande doesn't need high octane, its meant to run on regular 87 petrol.

    High octane is a blending component; it's meant to be mixed with regular petrol to raise it's octane number.
    High Octane Blending Component HOBC is the NAME of a FUEL that contains a blending component which has a high octane rating.

    It's not a concentrate designed to be mixed with low octane fuel, it is simply a fuel with a high octane rating, thus carries the ability to withstand auto ignition under high compression.

    Driving on high octane alone, without mixing with regular fuel is perfectly fine.

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    Ohh God so much confusing about HOBC.I guess no one is sure about only HOBC filling tank only except the last thread of the member. My Cars Manual says fill with Octane Grade 87 or higher, what to say now???

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    Quote Originally Posted by zee786 View Post
    I just bought brand new corolla Grande 1.8 CVTi, I'm a bit confused which fuel should be best for this car "Premiere or Hi-Octane"? I have heard that engines do not burnt Hi-Octane and leave few particles in shape of carbon, Is it true? Is this CVTi Corolla burn Hi-Octane properly? In manual of this engine suggests Octane grade 87 or higher, does it mean Hi-Octane will be fine for this? Any advice is welcome.
    What is stopping you from following the manual ? it says 87 or higher. What part is confusing here ? and where is it mentioned that mix the fuels ?
    -

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    Quote Originally Posted by Khurram26 View Post
    High Octane Blending Component HOBC is the NAME of a FUEL that contains a blending component which has a high octane rating.

    It's not a concentrate designed to be mixed with low octane fuel, it is simply a fuel with a high octane rating, thus carries the ability to withstand auto ignition under high compression.

    Driving on high octane alone, without mixing with regular fuel is perfectly fine.
    The term HOBC is used for several chemicals including methylene, MTBE, alkylates, and several reformates. They are supposed to be mixed with regular petrol.

    I haven't seen HOBC referred to as petrol anywhere but on pakwheels.
    _ 22 km/l from '03 VTi automatic, with plenty of room for improvement
    _ How to hypermile: http://www.cleanmpg.com/community/index.php?threads/1510/

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    Pure high octane is not a good idea unless you adjust the car's timing. Advance its timing if you want to use just high octane, otherwise, these cars run fine with super unleaded( aka regular petrol)

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    Come visit this thread when your car has done 50k km's. In as few words, just feed it hi octane the moment you start hearing knocking, if you don't just keep feeding it PSO fuel from company operated pumps. Total, shell etc are all nonsense, worked for PSO and did my research. Running a car since one year now that loves to knock on low quality fuel, so I am now aware each every damn company and their quality. And we own a 1.6 corolla which has developed knocking on normal fuel, it is only a matter of time.

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    why would a econobox sedan 1.8l need high octane? its meant for engines with 11 compression like toyota 20V BT, Honda F20B etc
    Your ego is writing cheques, your body can't cash.

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