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View Poll Results: To flush engine or not

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  • Yes flush away

    41 34.17%
  • No dont

    79 65.83%
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Thread: to flush or not to flush

  1. #1
    Regular Member aerodynamic18's Avatar
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    Default to flush or not to flush

    guys doin my oil change tomorrow and following from a thread i have one member sayin flush the engine and the other says not to. i bought engine oil flush from halfords but i can swap it for the stuff the vauxhall sell if that would be better. whats the general idea? also can anyone tell me the torque setings for the sump plug and the oil filter cover?

  2. #2
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    When i done my oil change i used the Waynes petrol engine flush. Not had any bad effects. However if the car has done many miles and never had an engine flush then it may cause problems with oil leaks.

  3. #3
    Regular Member mark1319's Avatar
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    How many miles has the car done? If it's done quite a lot and you don't know what was done previously leave it! You could potentially empty your wallet very quickly if the worst was to happen i.e. you flush it and the gunk sitting in the engine blocks the path for oil.

  4. #4
    Regular Member mushy2007's Avatar
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    As mark said leave it well alone

  5. #5
    Regular Member oil-burner's Avatar
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    my engine was flushed two weeks ago when it was at stealers for its 60k service, using vx flush. no probs yet. 05 cdti 150.

  6. #6
    Regular Member steve's Avatar
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    yep 60k on mine done an engine flush n oil change 2 month ago no probs at all. used slick 50 engine flush then new oil and topped up with slick 50 original. all seems good.

  7. #7
    Regular Member dv8's Avatar
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    Vehicle : Veccy C

    Trim : SRI

    Engine : CDTi


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    i have to agree with the no flush... i used to have an mondeo company motor, ok, stop the luaghing...ford used to have on the counter a notice advising drivers to have the flush, if you change the oil every 10k or once a year, youll have no problems if you leave it for a while over 2years or 20-30k, then maybe as ford said there would be a build up.. albeit i have always serviced once a year or 10k... this rule has worked for years..

  8. #8
    Regular Member mushy2007's Avatar
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    I was told during my mechanical course by an excpetional engineer and as mark said flushing a car can dislodge deposits that the car has happily lived with into the other oil feeds around the engine.

    Oil changes should be all you ever need.

  9. #9
    On a Sabbatical VauxVeteran's Avatar
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    Quote Originally Posted by mushy2007 View Post
    I was told during my mechanical course by an excpetional engineer and as mark said flushing a car can dislodge deposits that the car has happily lived with into the other oil feeds around the engine.

    Oil changes should be all you ever need.
    That's good advice, but not entirely true, if you don't flush an engine you get build up in the cam followers and valve stems, flushing removes this and keeps the engine opening and closing at the correct times, however, I'd not do it to a car that's done 40k+ unless I knew it'd always been done.

    PM Mark GSI, I'll go with his opinion, I think he'll agree with me, but if you should do it and do end up with a disaster eventually you shouldn't hold him responsible.

  10. #10
    Regular Member steve1975l's Avatar
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    Some interesting reading can be found here.

    http://www.carbibles.com/engineoil_bible.html

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