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E34 M5 Discussion 1988-1995 Sedan and Touring

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post #21 of 240 Old 2nd August 2012, 06:21 PM Thread Starter
First e28 M5
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Quote:
Originally Posted by raymondw View Post
No, sump gasket was replaced two years ago; this might explain the high silicon.
So basically the oil pan gasket was replaced, and I believe for 2 years if the car was driven with good oil and long trip should not have much down to none sludge inside the pan..

But, when the gasket was replaced did you guys use Silicon with the new gasket ? If yes, this will explain the hi silicon #.

When you put the gasket and torque the bolts the silicon goes inside the oil pan and I then the Oil is absolute chemical that dissolve anything it in time...The Oil is constant in touch with the silicon and dissolve enough to show in the lab analyst...

I usually never ever put silicon on oil pan, neither when assemble cyl head on in touch with front side of the timing chain cover but on the cam tray I use silicon. I use diff liquid Permatex product that is very strong and when it make few heat cycles becomes like melted brown sugar...

I have noticed the Aluminum is 5 compare to mine engine with more miles is 1 ! So definitely a lot more Piston ware...Is the car have big piston slack in the cold morning start ?









Hear is how I extend my engine life with a lot ! I will target 500k miles on my daily...


On my E24 M6 because its a Daily driver and I enjoy it on daily base ~100miles-160km for that reason shortly when I got my car years ago I did swap large case 2.93 LSD diff form E23 745i for better fuel economy and less revs. As well I have about 100 pounds in reduction from the car. I have changed my transmission with G260 3.82 (1), 2.20 (2), 1.40 (3), 1.00 (4), .81 (5)with shorter gear ratios vs G280 3.51 (1), 2.08 (2), 1.35 (3), 1.00 (4), .81 (5) and also about 10 pounds lighter.

The result is on freeway on 5th gear the engine goes with 140km/h with only ~26000rpm/s versus 120km/h at ~3100rpm/s with 3.91LSD

This is one of the reasons my engine S38-B35 does not touch a Drop of oil in between changes. Ones in a while I do run against E46 M3 to clean up the system.

The acceleration is not that bad from rolling only. I did many time rolling pull against 3,6 and the old Avus Blue 3.8 and I was able to walk with few cars length. But the max speed it will is about 245-250km/h because the gearing is turning too heavy and long but then hear we dont have the chance to drive top speed as on the autobahn in EU.

I believe this is a big part of long lasting engine.

The Euro M635CSi and E28 M5 comes with 3.73LSD little longer than 3.91 for US.

Anri

- E24 M6 1988. Shwartz/Tan (Daily driver).
- E24 M6 1988 Shwartz/Grey (Show car)
- E24 M6 1988 Royal Blue/Lotus. (Restoration)
- E24 M6 1988 Shwartz/Sparco S38-B36 3.6 (Track Toy).
- E28 M5 Black/Nature.
- E30 M3 1990. (Restoration)
- E31 840Ci 1997 Black/Black, all CSI futures daily driver soon S62-B50 6spd.
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Last edited by First e28 M5; 3rd August 2012 at 07:00 AM.
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post #22 of 240 Old 3rd August 2012, 09:21 PM
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Originally Posted by First e28 M5 View Post
But, when the gasket was replaced did you guys use Silicon with the new gasket ? If yes, this will explain the hi silicon #.
Yes, we used some automotive grade sealant and so did my engine shop with the rebuild of my M88/3 so that explains the high silicon in both UOA's. But we didn't use much sealant, only just enough for the cork-gasket to seat properly on the sump.

Quote:
Originally Posted by First e28 M5 View Post
I usually never ever put silicon on oil pan, neither when assemble cyl head on in touch with front side of the timing chain cover but on the cam tray I use silicon. I use diff liquid Permatex product that is very strong and when it make few heat cycles becomes like melted brown sugar...
Thanks for the tip.

Quote:
Originally Posted by First e28 M5 View Post
I have noticed the Aluminum is 5 compare to mine engine with more miles is 1 ! So definitely a lot more Piston ware...Is the car have big piston slack in the cold morning start ?
No, it does not.

When Blackstone results are extrapolated to the universal averages, the sample of GD55450 actualy reads 3, which brings this a little more in perspective. What I would like to now is the statistical mean and deviance so I can determine the actual criteria-ranges based on the widely accepted six-sigma method, which is a more scientific approach.

Raymond

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==> MY85 E28 M5 M88/3 <==

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Last edited by raymondw; 3rd August 2012 at 09:31 PM.
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post #23 of 240 Old 13th August 2012, 06:54 PM
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Hi Raymond ,

For a Blackstone Analysis how many sample tubes do they require and what quantity of oil in each tube ?

It seems a waste of money to have empty sample tubes sent from the USA so I want to find something locally so that I can send oil samples to the USA.
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post #24 of 240 Old 13th August 2012, 07:18 PM
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Quote:
Originally Posted by AseanAero View Post
Hi Raymond ,

For a Blackstone Analysis how many sample tubes do they require and what quantity of oil in each tube ?

It seems a waste of money to have empty sample tubes sent from the USA so I want to find something locally so that I can send oil samples to the USA.
They need 3Oz; for more info, Gas Sampling

Raymond

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==> MY85 E28 M5 M88/3 <==

The E34 M5 Alps tour. Sixth edition: 14-17 September 2007
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post #25 of 240 Old 14th August 2012, 06:26 PM
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Originally Posted by First e28 M5 View Post
Looks like this thread is for you and I only. Other People does not care I guess... For example a post thread with dyno chart is making all members to click thousand times more in only one day...
Hi Anri,

I have moved your post to the synthetic vs semi-synthetic thread as this is the place to discuss lubricants and additives. I'd rather keep the oil-analyst thread clean; and yes, I agree that until this far, we are the only ones sharing our lab-results, but I have confidence that other members will follow suit.

Raymond

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==> MY85 E28 M5 M88/3 <==

The E34 M5 Alps tour. Sixth edition: 14-17 September 2007

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post #26 of 240 Old 11th September 2012, 12:13 AM
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New Report 1993 M5

My Blackstone Oil Anaylsis for Valvoline VR1 20W50:1993_M5_Blackstone Report.pdf

Last edited by GregT53; 11th September 2012 at 02:38 AM. Reason: Wrong Attachment
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post #27 of 240 Old 11th September 2012, 06:49 AM Thread Starter
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Quote:
Originally Posted by GregT53 View Post
My Blackstone Oil Anaylsis for Valvoline VR1 20W50:Attachment 163732

GregT56,

Thanks for making the effort to sent your oil for lab test and then post hear! Great member activity.

It would be nicer if somehow convert the PDF file to JPG as Ray and I did so we can see thing more clearly.

How many miles do you have on your engine ? Any rebuild, engine work ? Driving conditions etc...This things are important in order to analyze and make some comments.

Your Lead is as high as mine 5ppm that making me thing that is very normal for our engines. If we change rod bearings this Lead# will go down with a lot.

Aluminum is 2ppm that is perfect low number, mine is 1ppm that stance more for pistons ware.

VR1 shows a lots of ZDDP ppm. 1350 Zinc that is great number for protection. Flash point is very hi and expected for 20W-50 oil grade.

Also is tis VR1 Black bottle or grey ? There are 2 kinds full Synthetic and Mineral VV211 base ?

I think VR1 is great oil for the money, very nice feedback.

Regards
Anri

- E24 M6 1988. Shwartz/Tan (Daily driver).
- E24 M6 1988 Shwartz/Grey (Show car)
- E24 M6 1988 Royal Blue/Lotus. (Restoration)
- E24 M6 1988 Shwartz/Sparco S38-B36 3.6 (Track Toy).
- E28 M5 Black/Nature.
- E30 M3 1990. (Restoration)
- E31 840Ci 1997 Black/Black, all CSI futures daily driver soon S62-B50 6spd.
Need any model BMW work in So.Cal ?
https://www.instagram.com/euroclassicmotors/
https://www.youtube.com/watch?v=XTV4asC3Bp0
https://www.youtube.com/channel/UCyh..._as=subscriber
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post #28 of 240 Old 11th September 2012, 12:46 PM
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Quote:
Originally Posted by First e28 M5 View Post
GregT56,

Thanks for making the effort to sent your oil for lab test and then post hear! Great member activity.

It would be nicer if somehow convert the PDF file to JPG as Ray and I did so we can see thing more clearly.

How many miles do you have on your engine ? Any rebuild, engine work ? Driving conditions etc...This things are important in order to analyze and make some comments.

Your Lead is as high as mine 5ppm that making me thing that is very normal for our engines. If we change rod bearings this Lead# will go down with a lot.

Aluminum is 2ppm that is perfect low number, mine is 1ppm that stance more for pistons ware.

VR1 shows a lots of ZDDP ppm. 1350 Zinc that is great number for protection. Flash point is very hi and expected for 20W-50 oil grade.

Also is tis VR1 Black bottle or grey ? There are 2 kinds full Synthetic and Mineral VV211 base ?

I think VR1 is great oil for the money, very nice feedback.

Regards
Anri
Hi Anri,

I'll see what I can do to convert the file, but I have to tell you that I am not the most adept at computer things. Seems I'm more at home with an old car!

My engine has 56K miles on it and has no rebuild. It has been maintained along the BMW maintenance guidelines.

I drive the car on a regular basis. It is mostly combined city/highway with one extended trip of around 200 miles (on this analysis).

I am using the gray bottle; the oil is non-synthetic.

Agree that VR1 is good value as I am paying around USD5.00/quart. Blackstone said to increase the change interval to 5K, but I am going to stick with my schedule of every 3K or 3 months.

Hope this helps all who have an interest in this sort of thing. I think this is one of the more important threads on the forum and hope more are able to post results.
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post #29 of 240 Old 11th September 2012, 03:17 PM Thread Starter
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Quote:
Originally Posted by GregT53 View Post
Hi Anri,

I'll see what I can do to convert the file, but I have to tell you that I am not the most adept at computer things. Seems I'm more at home with an old car!

My engine has 56K miles on it and has no rebuild. It has been maintained along the BMW maintenance guidelines.

I drive the car on a regular basis. It is mostly combined city/highway with one extended trip of around 200 miles (on this analysis).

I am using the gray bottle; the oil is non-synthetic.

Agree that VR1 is good value as I am paying around USD5.00/quart. Blackstone said to increase the change interval to 5K, but I am going to stick with my schedule of every 3K or 3 months.

Hope this helps all who have an interest in this sort of thing. I think this is one of the more important threads on the forum and hope more are able to post results.

Hi,

Thanks for the info.

Hmm on 56k original miles the Lead is 5 as hi as mine at 200k miles on original engine. Lead # stance for bearings at this moment I can not think of any other part that will make the Lead to go up..

That is very odd to me. 5 is expected number for 200k miles engine but not for 56k

Well the more Lab Tests from different members will make things more clear! It is possible that this engines ware bearings no matter the engine miles but for know its too early to make final statement.

Thanks
Anri

- E24 M6 1988. Shwartz/Tan (Daily driver).
- E24 M6 1988 Shwartz/Grey (Show car)
- E24 M6 1988 Royal Blue/Lotus. (Restoration)
- E24 M6 1988 Shwartz/Sparco S38-B36 3.6 (Track Toy).
- E28 M5 Black/Nature.
- E30 M3 1990. (Restoration)
- E31 840Ci 1997 Black/Black, all CSI futures daily driver soon S62-B50 6spd.
Need any model BMW work in So.Cal ?
https://www.instagram.com/euroclassicmotors/
https://www.youtube.com/watch?v=XTV4asC3Bp0
https://www.youtube.com/channel/UCyh..._as=subscriber

Last edited by First e28 M5; 11th September 2012 at 03:19 PM.
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post #30 of 240 Old 11th September 2012, 03:37 PM
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Quote:
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Hi Anri,

I'll see what I can do to convert the file, but I have to tell you that I am not the most adept at computer things. Seems I'm more at home with an old car!
The pdf file is OK; everyone can open that.

Nice results and good to see that VR1 20W50 has a nice stash of ZDDP elements. I also wouldn't worry about the 5ppm lead and I agree not to extend the drain-interval even though the TBN prooves that it is possible.

Raymond

==> MY90 E34 M5 3.6 <==
==> MY85 E28 M5 M88/3 <==

The E34 M5 Alps tour. Sixth edition: 14-17 September 2007
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