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Thread: E60 525 Engine Jerky

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    MapleLeaf's Avatar
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    E60 525 Engine Jerky

    My engine is jerky when idling (e.g. stop at traffic lights) and, strangely, when on reverse gear jerks more.

    Car has regular servicing. 100k mileage.

    Petrol Caltex 98, once in a while 95.

    Two nights ago, and since Shell Vpower was on offer, I pumped a full tank of Vpower.

    Last night and this morning, I noticed that my car don't jerk anymore.


    Why is my engine appetite so atas? Does it need workshop attention?

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    Re: E60 525 Engine Jerky

    Quote Originally Posted by MapleLeaf View Post
    My engine is jerky when idling (e.g. stop at traffic lights) and, strangely, when on reverse gear jerks more.

    Car has regular servicing. 100k mileage.

    Petrol Caltex 98, once in a while 95.

    Two nights ago, and since Shell Vpower was on offer, I pumped a full tank of Vpower.

    Last night and this morning, I noticed that my car don't jerk anymore.


    Why is my engine appetite so atas? Does it need workshop attention?
    before V Power what were you on???













    try monitor again...........
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    Re: E60 525 Engine Jerky

    I been using esso 8000 or v power no jerking problems,but however I add octane booster n fuel injector cleaners on alternate tanks,
    Jerking prolly came from jammed fuel injector,no harm buying one of those fuel injectors n try to see if such problems still occur
    Last edited by Man13utd13; 24-09-2012 at 10:46 AM.


    Rides~~
    E90 318i (June 2011-July 2011)
    E60 525i XL (August 2011 - Present)

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    Re: E60 525 Engine Jerky

    Before Vpower, I was on Caltex 97. Once or twice, I tried 95.


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    Re: E60 525 Engine Jerky

    Quote Originally Posted by Man13utd13 View Post
    I been using esso 8000 or v power no jerking problems,but however I add octane booster n fuel injector cleaners on alternate tanks,
    Jerking prolly came from jammed fuel injector,no harm buying one of those fuel injectors n try to see if such problems still occur
    Please share with me precisely what you use.... brand, model, quantity, duration, cost, where to get etc. Thks.
    Last edited by MapleLeaf; 24-09-2012 at 10:55 AM.

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    Re: E60 525 Engine Jerky

    Where can we get the fuel injector cleaners ?
    Dun ask me use the SEARCH function k.
    WARRANTY ENDS, FUN BEGINS

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    Re: E60 525 Engine Jerky

    Quote Originally Posted by Jason8822 View Post
    Where can we get the fuel injector cleaners ?
    Dun ask me use the SEARCH function k.
    Autobac carry a few brands.

    I still love those that spray directly through the throttle body, then you will see lots of smoke ram out from the exhaust!!!

    Now manly pour into the fuel tank......

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    Re: E60 525 Engine Jerky

    I use two brands one is marvel mystery oil(super hard to find) and the other is
    Stp brand (almost every petrol kiosk can find) fuel injectors n octane booster,they also have a deep cleaning system,
    They got 4 sorts of additives
    One grey which is the deep cleaning system which is about $25
    One red which is the fuel injector cleaner
    One orange which is the octane booster
    And one black (forgot what is it )
    Red/orange/black is about $12-13 a bottle

    When I took over the car it was not performing very well,engine was like no power and such,had full pml service records by ex owner,talked to a few friends they told me could be the injectors and such not clean so was suggested to them to use the injector cleaners and using better quality petrol so i tested v power all the way plus the stp grey bottle for two months to clean up the injectors and such until the 3rd month when I find power is more n engine smoother(hence no jerkiness)

    Tried before caltex and spc but found out for me the order of preference for my car would be
    V power
    Esso 98
    Spc 98 level
    Caltex kills my car (no offense to those who uses caltex)
    But since don't have spc near my home so it's usually esso and vpower for me

    After finding that the car is purring smoothly,verified by a few friends as well,i changed the pump pattern for my monthly maintenance 4full tanks a month,one week one tank
    1st-3rd week pump esso 8000 add red/orange/black alternating them on a weekly basis
    4th week pump v power and the grey bottle

    The stp products I bought them from petrol kiosk and mustafa n giant before

    A lot of people will think that these additives are just a bluff to make us spend more money.
    But after trying it on my own two sedans at home and also some friends who uses diesel commercial vehicles,there is really a diff,and best of all fc lowers a bit

    But now I only uses the stp deep cleaning system and Lucas oil octane booster

    And frankly I have not modded much of my ride yet and a few of my friends are amazed at how smooth the car is when the mileage is approaching 75k coupled with my driving habit,they always say "the way u drive engine very fast up lorry"

    The ride is definitely not exactly smooth as compared to those who has done extensive tuning and modding or compared to a new ride but for that kind of mileage is considered quite good Liao


    Rides~~
    E90 318i (June 2011-July 2011)
    E60 525i XL (August 2011 - Present)

  9. The Following User Says Thank You to Man13utd13 For This Useful Post:

    MapleLeaf (24-09-2012)

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    Re: E60 525 Engine Jerky

    In case for those who need photo here is the link

    Fuel Cleaner by STP® | Complete Fuel System Cleaner

    Gas Treatment by STP® | The Original STP® Fuel Additive

    Fuel Injector Cleaner | STP® Super Concentrated Fuel Injector Cleaner

    Octane Booster by STP® | The Octane Boosting Fuel Treatment

    Sorry if I have some mix up on which color is for which purpose cos now I buy them by the colored bottles which is red black grey orange

    And if anybody can find this
    http://www.stp.com/products/fuel-add...tor-treatment/
    Please let me know where thanks
    dankoo likes this.


    Rides~~
    E90 318i (June 2011-July 2011)
    E60 525i XL (August 2011 - Present)

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    Re: E60 525 Engine Jerky

    Quote Originally Posted by Ct13 View Post
    Autobac carry a few brands.

    I still love those that spray directly through the throttle body, then you will see lots of smoke ram out from the exhaust!!!

    Now manly pour into the fuel tank......
    You mean you open the air filter box and SPRAY ?
    WARRANTY ENDS, FUN BEGINS

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