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Thread: Oil consumption question

  
  1. #1
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    Oil consumption question

    Alright everyone,

    I have a 1.6 16v Astra G 1999 with 42000 on the clock, the car seems to drink about a liter of oil per 1000 miles.

    Vauxhall seem to think that this is normal.

    If I used fully synthetic oil, would this sort my problem? Also which brand should I use?

    Would this damage the engine?

    Anyone else have problems? I know of at least 5 people off this bored whose G’s use oil.

    I like my Astra, but if I need to sell it I will, and get a Golf or an Audi.
    - Astra G - 1.6 16v - SXi - Star Silver -

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    BoltonDave's Avatar
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    iirc the 1.6 engines are known for using a lot of oil. I've got a 1.8 and in 5000 hasn't used any.

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    The consumption you quote is normal. 600ml per 1000km is the exact book figure, so you're within margin of error.

    Vauxhall engines generally use semi-synthetic. It's best not to mix, but it's no massive problem if you do. Just make sure it's serviced at the correct intervals.

    40,000 is about the time for a new timing belt on your age of car if it hasn't been done, otherwise oil consumption isn't the only problem you'll have.

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    I know the 1.6 16v does tend to drink a lot of oil, as a Vauxhall mechanic told me, he said the 1.8 is the same engine and doesn’t drink.

    I’m not bothered as long as I have no major failure larking.

    There is no smoke, or leaks.

    If I had an oil change to Fully Synthetic Inc filter, would this be ok for my engine?

    Is it true once you use fully, you have to always use fully?

    ZS, the timing belt was replaced at about 27,000, Inc rollers etc, and the belt was changed again with the water pump.

    I just hope my car wont fail on me.
    - Astra G - 1.6 16v - SXi - Star Silver -

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    My Z16XE has never used any oil in 48K
    Regards
    Rich C

    Former owner of Astra SXi.. New owner of a Satin Silver Civic Type R.. "Bye Bye GTi"!!

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    All engines should use oil while they're running in. It's a fact.

    However, how well the engine runs in in those initial stages more or less governs how much oil the engine will use in later life. Some people don't run their engines in properly, leading to oil consumption later on. Then again, some other engines just always use oil, which seems to be the case with the Z16XE (and I've found the X16SZR to be found of the old Duckhams too).

    My 1.2 Z12XE Corsa used just over 600ml/1000 miles for the first 3000 miles, but since 3000 miles it hasn't used a drop. It's now at 5000 miles and running sweetly. I ran the Corsa in by keeping revs below 3500rpm for the first 500 miles, and then letting the engine rev to 6000rpm on occasion during the next 1000 miles, making sure to keep the revs up to avoid torquing the engine unnessecarily.

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    Quote Originally Posted by Maka
    If I had an oil change to Fully Synthetic Inc filter, would this be ok for my engine?

    Is it true once you use fully, you have to always use fully?
    I find Vauxhall engines to be more prone to leaking on fully synthetic, as it's quite a bit thinner when it gets hot. Semi-synthetic doesn't thin as much, so tend to stay within the confines of the engine.

    It's best to stick to one type of oil. If you're changing to fully synthetic, then it's best to have a short service interval after you do so. The fully synthetic will clean any dirt and residue around the engine that may be left by the mineral component of the semi-synthetic.

    I'd aim to change the oil and filter after 3000 miles for the first time after changing to fully synthetic.

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    This is where my problem lies.

    The lady I bought the car off said she never did high miles or never took the car over 3000 revs, as she thought she’d be doing the engine well. She’s caused more damage than good.

    I’m going to sell this car next year, I’m sick of it.

    Thanks for all the advice everyone.
    - Astra G - 1.6 16v - SXi - Star Silver -

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    How you drive the car affects how much oil it uses....... if you go round revving the t*ts off the engine then it will use more oil than if you drive round more steadily.....

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    I dont rev this engine hard.

    Now and again I take it up to about 5.5k revs, I never red line it, I never have.

    Most of the time I change at 3.5k revs, or on motorway slip roads 4k revs.
    - Astra G - 1.6 16v - SXi - Star Silver -

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