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Introduction: Motul

 
Old 08-09-2018, 05:38 AM
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Strosek Ultra
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Never ever use Motul oil. This is what happened to a BMW Alpina B10 4,6 V8, not once but twice. The very expensive oil Motul 300V Competetion 15W50 was used.
The car has always been used for long distance driving, no short trips, no additives, oil change intervals always within specs.
┼ke
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Old 08-09-2018, 09:55 AM
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Good heavens
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Old 08-09-2018, 10:27 AM
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Originally Posted by Strosek Ultra View Post

Never ever use Motul oil. This is what happened to a BMW Alpina B10 4,6 V8, not once but twice. The very expensive oil Motul 300V Competetion 15W50 was used.
The car has always been used for long distance driving, no short trips, no additives, oil change intervals always within specs.
┼ke
Wow, was that your BMW?

Cheers,

Dave
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Old 08-09-2018, 11:11 AM
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Strosek Ultra
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Originally Posted by DR View Post
Wow, was that your BMW?

Cheers,

Dave
Yes, it is my wifes BMW Alpina cars since 1997. I have personally always changed the oil and did not notice any problem until one or two oil changes ago. Now I have had the engine completely apart for cleaning. I could not find any abnormal wear but oil sludge everywhere and the hydraulic lifters were clogged.
No one has been able to give me a good probable explanation why this real heavy oil sludge build up occured. First time it was not that bad but one or two oil changes later it looked like you have seen on the pictures.
The Swedish Motul rep just said quote: "This is an racing oil you have to change it frequently."
I find it unacceptable, that is not what they said when I first started to buy the oil. The BMW has a service indicator telling you when it is time to change the oil which usually takes place with an interval of 7500 to 10000 km.
However I have suspicion, but I do not know, that the BMW crankcase ventilation system has something to do with the sludge build up.
I have been running the same oil in two of the 928 cars and when the next oil change is coming up I will remove the sump for inspection.
I first noticed the problem when the BMW valve lifters started to make noise, to tick loudly, which I so far have not noticed for any of the Porsche cars.
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Old 08-09-2018, 11:36 AM
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Originally Posted by Strosek Ultra View Post
Yes, it is my wifes BMW Alpina cars since 1997. I have personally always changed the oil and did not notice any problem until one or two oil changes ago. Now I have had the engine completely apart for cleaning. I could not find any abnormal wear but oil sludge everywhere and the hydraulic lifters were clogged.
No one has been able to give me a good probable explanation why this real heavy oil sludge build up occured. First time it was not that bad but one or two oil changes later it looked like you have seen on the pictures.
The Swedish Motul rep just said quote: "This is an racing oil you have to change it frequently."
I find it unacceptable, that is not what they said when I first started to buy the oil. The BMW has a service indicator telling you when it is time to change the oil which usually takes place with an interval of 7500 to 10000 km.
However I have suspicion, but I do not know, that the BMW crankcase ventilation system has something to do with the sludge build up.
I have been running the same oil in two of the 928 cars and when the next oil change is coming up I will remove the sump for inspection.
I first noticed the problem when the BMW valve lifters started to make noise, to tick loudly, which I so far have not noticed for any of the Porsche cars.
┼ke
That is pretty amazing. The only thing that pops into my head (I ain't no BWM Specialists, lol ) is using higher viscosity racing oil vs the lower viscosity "normal" oil spec'd for it????? Unless it is an M motor and used on the track?? I know a lot of the cars want 0W30 (or even 20) these days, Excuse my ignorance, but I don't know your original spec.

Just a thought, Cheers,

Dave
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Old 08-09-2018, 12:11 PM
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Boy, talk about serendipity.
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Old 08-09-2018, 01:32 PM
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worked fantastic in my KTM and Duc's.......
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Old 08-09-2018, 02:58 PM
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Never had any issues with Motul and we are running it in my Father in-law's 480HP LSx Escalade.
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Old 08-09-2018, 03:41 PM
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Iĺve never used motul but I do have several friends who swear by it in their jap cars. In my Audi and VW I have used Liqui Moly as the reviews & price being distributor cost is too good of a deal. I have been peeking over the fence about Motul though!!
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Old 08-09-2018, 03:46 PM
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So would this be the rec for a 20W50 for 928s?

https://www.motul.com/us/en-US/produ...6-9881333c9389
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Old 08-09-2018, 04:11 PM
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Originally Posted by Rob Edwards View Post
So would this be the rec for a 20W50 for 928s?

https://www.motul.com/us/en-US/produ...6-9881333c9389
TDS provides no specification for PPM of ZDDP.
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Old 08-09-2018, 06:06 PM
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Point 1 : If a certain spec is important, I will not buy the product without that spec stated in an official datasheet (Datenblatt).

Point 2 : In addition, all oil manufactures are in a constant state of optimizing their juice. Without a spec that is "hopefully" updated, I have no way of catching the changes.

So in summary, your statement of **around 1300 ppm** is good today, but tomorrow, who knows?
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