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Thread: Engine using oil, and dirty plugs – is my turbo oil seal leaking?

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  1. Re: Engine using oil, and dirty plugs – is my turbo oil seal leaking? 
    #31
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    If you are still using oil, adding ZDDP could lead to catalyst failure and cam/follower failure on the 1.8 20v is almost unheard of BUT the cam chain does wear.
    Anthropogenic climate change, the biggest con inflicted on mankind since religion...

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  2. Re: Engine using oil, and dirty plugs – is my turbo oil seal leaking? 
    #32
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    Quote Originally Posted by Crasher View Post
    If you are still using oil, adding ZDDP could lead to catalyst failure and cam/follower failure on the 1.8 20v is almost unheard of BUT the cam chain does wear.
    Thanks for that advice.

    I use ZDDPlus in my van, and thought about using it in the Audi after reading your rant on another thread about crap oil causing wear.

    But the VW doesn't have a cat, and as the Audi still burns some oil, the zinc from the additive reaching the cat probably would wreck it prematurely.

    I guess I'll stick with Helix Ultra and 8000 km changes, and hope for the best.

    Crasher - Is it worth taking off the cylinder head cover to check the cam chain and tensioner/pads for wear at the mileage I have? Also, how is the chain wear measured - is there a gauge for this?
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    1996 A4 B5 (S2) Avant 1.8T (petrol) 150 bhp code AEB automatic with 79,125 kms = 49,450 miles on 30/07/23
    VW T25 Camper, Alfa 33 1.4 ie, 2 Alfa 33's for parts.
     
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  3. Re: Engine using oil, and dirty plugs – is my turbo oil seal leaking? 
    #33
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    I worry about current oils and cam follower wear after having this problem on one of my Alfa engines at about 82,000 miles.

    Maybe the previous owner(s) didn't bother changing the engine oil

    Luckily I was able to find 2 new camshafts and a full set of cam followers

    Lifters and Cam.jpg
    Did this forum help you? Help make sure it's here next time! Follow the instructions at the top of the page to make a suitable donation using PayPal .
    1996 A4 B5 (S2) Avant 1.8T (petrol) 150 bhp code AEB automatic with 79,125 kms = 49,450 miles on 30/07/23
    VW T25 Camper, Alfa 33 1.4 ie, 2 Alfa 33's for parts.
     
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  4. Re: Engine using oil, and dirty plugs – is my turbo oil seal leaking? 
    #34
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    Well Alfa’s are designed to go wrong, it just wouldn’t be right if it didn’t... The chain and tensioner wear is visually quite obvious if it is bad.
    Anthropogenic climate change, the biggest con inflicted on mankind since religion...

    Slava Ukraini
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  5. Re: Engine using oil, and dirty plugs – is my turbo oil seal leaking? 
    #35
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    Quote Originally Posted by Crasher View Post
    Well Alfa’s are designed to go wrong
    Perhaps that's why they made them so much easier to work on.



    Quote Originally Posted by Crasher View Post
    The chain and tensioner wear is visually quite obvious if it is bad.
    Thanks. At what sort of mileage do you think they should be checked?
    Last edited by FrenchAudi; 17-09-2019 at 05:25 PM.
    Did this forum help you? Help make sure it's here next time! Follow the instructions at the top of the page to make a suitable donation using PayPal .
    1996 A4 B5 (S2) Avant 1.8T (petrol) 150 bhp code AEB automatic with 79,125 kms = 49,450 miles on 30/07/23
    VW T25 Camper, Alfa 33 1.4 ie, 2 Alfa 33's for parts.
     
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  6. Re: Engine using oil, and dirty plugs – is my turbo oil seal leaking? 
    #36
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    I would only worry about it if you can hear it rattle on a cold start, I can only remember one instance that I ever saw of failure and that was the VVT version on a Cupra R BAM engine with mega mileage and poor servicing.
    Anthropogenic climate change, the biggest con inflicted on mankind since religion...

    Slava Ukraini
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  7. Re: Engine using oil, and dirty plugs – is my turbo oil seal leaking? 
    #37
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    Well, two years down the line, and we just returned from a 2500 km trip around Spain. Mostly on fast Autovias, the free motorways.

    I added 1/2 litre of oil a couple of days before getting home. Today I checked the service history, and see that when I added the 1/2 litre that came to only one litre of oil in the previous 5,500 km (3,400 miles). Quite an improvement on 1 litre per 2,000 miles back in 2017.

    Also, the petrol consumption for the trip averaged 7.8 litres per 100 km (36 mpg), also an improvement over the usual 9 litres per 100 km (31 mpg)
    Last edited by FrenchAudi; 17-09-2019 at 05:35 PM.
    Did this forum help you? Help make sure it's here next time! Follow the instructions at the top of the page to make a suitable donation using PayPal .
    1996 A4 B5 (S2) Avant 1.8T (petrol) 150 bhp code AEB automatic with 79,125 kms = 49,450 miles on 30/07/23
    VW T25 Camper, Alfa 33 1.4 ie, 2 Alfa 33's for parts.
     
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  8. Re: Engine using oil, and dirty plugs – is my turbo oil seal leaking? 
    #38
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    So that is from the Glaze Bust treatment only?
    Anthropogenic climate change, the biggest con inflicted on mankind since religion...

    Slava Ukraini
    !


     
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  9. Re: Engine using oil, and dirty plugs – is my turbo oil seal leaking? 
    #39
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    Quote Originally Posted by Crasher View Post
    So that is from the Glaze Bust treatment only?
    It is from the GB + mineral oil treatment as per GB instructions, totalling 1160 km, and a further 13,000 km.

    After refilling with normal oil the car has done 13,000 km with one further oil change.

    The consumption up to the oil change, for 7,000 km, was 3 litres.

    Since that change it is 1 litre for 6,000 km as of today
    Did this forum help you? Help make sure it's here next time! Follow the instructions at the top of the page to make a suitable donation using PayPal .
    1996 A4 B5 (S2) Avant 1.8T (petrol) 150 bhp code AEB automatic with 79,125 kms = 49,450 miles on 30/07/23
    VW T25 Camper, Alfa 33 1.4 ie, 2 Alfa 33's for parts.
     
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  10. Re: Engine using oil, and dirty plugs – is my turbo oil seal leaking? 
    #40
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    Excellent validation of the product. We built a 2.3 5 cyl for an Audi Coupe and after the Millers Competition Running in Oil, I put in the Motul as I mentioned and the thing took up drinking as a hobby. Went to Blaze Bust, then CRO again; for 500 miles each and then a simple Fuchs 15w/40 mineral and so far the customer has said nothing.
    Anthropogenic climate change, the biggest con inflicted on mankind since religion...

    Slava Ukraini
    !


     
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