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  #11  
Old 23-11-2015, 07:10 PM
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Dave P Dave P is offline
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Mine has the wrong oil in and has been like that for the last 12 years or so (10/60) but will probably stick with it for the moment
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  #12  
Old 24-11-2015, 10:44 AM
MParallel MParallel is offline
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Quote:
Originally Posted by c_w View Post
5/40 is the original spec, I don't think I've seen 5/30 ever being though, sounds a bit thin to me and I dount that spec oil was around much in the early 90s when the engine came out? Probably fine for winter use though!
5w40 is the correct oil. I can't even believe BMW would now recommand 5w30 for it.

Of course a range of oils will work depending on climate and such, but in normal-ish types I would never go with anything other than the best 5w40 oil.

If it is a dedicated track car, that never goes below 6k rpm, that's the only time I'd consider 10w60.

Problem is BMW has changed its recommanded oil list a few times in history.

Since 2004 the special oil list has been withdrawn which included the 10w60 for all engines before 1998 and replaced by BMW High Performance Synthetic oil 5w30 and 10w60 for M cars starting from the E39 M5.

In 2004 Castrol had to change the formula of TWS Motorsport to comply with environmental related rules. To make a long story short, according information, they had to reduce ZDDP additives making the boudary mode lubrication less effective.

The S54 has a very different valvetrain which doesn't rely on this.

This is just some of the info. There is so mch to find about oil. Each has his/her preference. For me that is 5w40.
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  #13  
Old 24-11-2015, 07:14 PM
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Ashley Ashley is offline
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Thanks for your input everybody. I think I'm going to stick with what I've always used and put the 10w60 in it and then next oil change consider my options.

Now off to contact ECP to see how to exchange the oil

Ash
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  #14  
Old 25-11-2015, 09:44 AM
MattH3764 MattH3764 is offline
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Quote:
Originally Posted by MParallel View Post
5w40 is the correct oil. I can't even believe BMW would now recommand 5w30 for it.

Of course a range of oils will work depending on climate and such, but in normal-ish types I would never go with anything other than the best 5w40 oil.

If it is a dedicated track car, that never goes below 6k rpm, that's the only time I'd consider 10w60.

Problem is BMW has changed its recommanded oil list a few times in history.

Since 2004 the special oil list has been withdrawn which included the 10w60 for all engines before 1998 and replaced by BMW High Performance Synthetic oil 5w30 and 10w60 for M cars starting from the E39 M5.

In 2004 Castrol had to change the formula of TWS Motorsport to comply with environmental related rules. To make a long story short, according information, they had to reduce ZDDP additives making the boudary mode lubrication less effective.

The S54 has a very different valvetrain which doesn't rely on this.

This is just some of the info. There is so mch to find about oil. Each has his/her preference. For me that is 5w40.
I think this is exactly right and consistent with my own oil research. And of course - not every 5w40 oil has sufficient ZDDP. But I have had a sample of it analysed and ZDDP levels seemed sufficient. Of course, you cannot go too high on ZDDP because it ruins the cats, but new cats are cheaper than a new engine........
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  #15  
Old 25-11-2015, 09:50 AM
MattH3764 MattH3764 is offline
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For real anoraks, the best detail I have found is here:

http://www.m5board.com/vbulletin/e34...nalyst-20.html

Post 197 contains my results on the Fuchs Pro S 5w40 in the M Coupe.
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  #16  
Old 09-03-2016, 09:13 AM
issproking issproking is offline
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Opie Oils is a bit confusing, in terms of Fuchs Oil anyway

If you put in the S50 details, it comes back with Fuchs Titan SuperSyn - and quite cheap at £26.95 for 6L

Last post mentions Pro S but on the website again there seems to be two variants of this - Silkolene Pro S (but with a picture of Titan Race Pro) and Titan Race Pro S

Can anyone shed any light?

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  #17  
Old 09-03-2016, 04:23 PM
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It's the same oil rebranded now I think.
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  #18  
Old 09-03-2016, 07:43 PM
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Has anyone seen mr vanos advice on oil?

He claims 10w60 is deffo wrong for the s50 and he see engines become sludged up with this oil. He says the 5w40 is the right oil for our cars.

Have a look at his site he is also on Facebook and has plenty of write ups.

Mine now has the Fuchs 5w40

Ash
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  #19  
Old 09-03-2016, 08:54 PM
kwoffa kwoffa is offline
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Have been using 5/40 since having my Vanos rebuilt with no problems at all..
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  #20  
Old 10-03-2016, 08:05 AM
issproking issproking is offline
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So which 5w40 have you's been using? The Titan Race Pro or the cheaper Titan SuperSyn?
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