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E34 M5 Discussion 1988-1995 Sedan and Touring

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post #31 of 240 Old 12th September 2012, 04:15 PM
GregT53
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Quote:
Originally Posted by First e28 M5 View Post
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
I asked Blackstone about this higher than normal lead level and they responded that it's difficult to know if this is a significant finding since they have so few results for the S38. Blackstone says to be concerned if an upward trend develops but for now no reason to worry. Sure would be nice if we could get more Board members to submit samples so more reliable numbers could be developed.
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post #32 of 240 Old 1st October 2012, 05:29 AM
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I found this write up on Valvoline VR1 today.

I sent my parts man out to get 10 litres of VR1 today and he came back with Valvoline XLD 20W-50 , the shop told him it's the same , the XLD was sent back ...

Quote:

Racing Oil
What are the benefits to using a racing oil versus a regular "street legal" oil?
The Valvoline VR1 Racing & "Not Street Legal" racing oils contain additional additives for increased horsepower and reduced friction on metal parts, provide extra wear protection for high compression/higher horsepower engines, and include fewer detergents than regular conventional motor oils.

What is motor oil with zinc?
The anti-wear additive simply referred to as zinc by most car enthusiasts is actually short for Zinc DialkylDithiophosphates or ZDDP. Its primary role is to prevent metal-to-metal contact between engine parts by forming a protective film. Despite being referred to as zinc, this additive actually contains zinc and phosphorus, with phosphorus performing the anti-wear function in the motor oil with zinc.

Why is it important to have the zinc/phosphorus levels in motor oil changed?
With ever increasing limits on emissions, automobile manufacturers have tightened emission control systems on newer vehicles. This is one of several factors considered when the American Petroleum Institute (API) sets standards for motor oil with zinc. The current API standard is SM which replaced the previous SL classification. Because phosphorus can poison a vehicle's emission system, the level of zinc is lower for current motor oil.

What is the controversy surrounding the amount of zinc in motor oil?
Many hands-on car enthusiasts and engine experts believe the lower levels of zinc in SM motor oil is causing excessive wear in older style push-rod and flat-tappet engines. This is despite the fact that all new motor oil classifications are intended to be backward compatible. This has resulted in the widely accepted belief that modern motor oil is not adequate to protect older engines.

What solutions does Valvoline offer to the zinc issue?
Valvoline offers two solutions to the zinc issue:
Valvoline VR1 Racing Oil: Contains 75% higher zinc than SM motor oil with a balanced additive package designed to work in both racing and street-legal applications. This product will protect older style push-rod and flat tappet engines. Valvoline provides this product in both multi and mono viscosity grades: 20w50, straight 50, 10w30, straight 30, straight 40, and straight 60.
Longer-Lasting Zinc/Phosphorus: Valvoline uses an advanced zinc/phosphorus additive that keeps higher levels of phosphorus in the motor oil where it protects the engine instead of poisoning the catalytic converter. Valvoline is the only brand offering this unique additive across its entire line of passenger car motor oils including SynPower -- the only synthetic oil that offers this additive.

Which oil has more zinc/ZDDP: VR1 or "Not Street Legal" racing oil?
Valvoline VR1 Racing Oil contains .13 percent of zinc and .12 percent of phosphorus compared to the Valvoline "Not Street Legal" Racing Oil which contains .14 percent of zinc and .13 percent of phosphorus.

Will an additive boost the zinc level?
You can use an additive to increase the zinc level. However, check with your motor oil manufacturer to ensure the additive is compatible with your racing oil.

Is VR1 a conventional oil, a synthetic or a blend?
Valvoline VR1 racing oil is a conventional, non-synthetic racing oil.
For more information or to submit additional questions, please click here to contact us via email or by phone at 1-800-TEAM-VAL.

Valvoline.com > FAQs > Motor Oil Car FAQs > Racing Oil
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post #33 of 240 Old 2nd November 2012, 02:59 PM
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To give you all some more data points. here is a paste of my car's results: (I got this done at The Oil Lab in the UK).

3.8 E34 M5
113k miles
10w40 oil about 2500 miles in.

Summary seems to be some slightly higher wear numbers than others have had but still well within satisfactory limits according to the lab. The silicon number is notable so I will check the air filter. Other thoughts welcome.



PHYSICAL PROPERTIESfficeffice" />
Viscosity @ 40°C
cSt
72.9
Water Content
%wt
0.0
Total InsolubleMatter
%wt
0.3




SPECTROCHEMICAL ANALYSIS

Iron
ppm
16
Chromium
ppm
2
Aluminium
ppm
6
Molybdenum
ppm
142
Copper
ppm
7
Lead
ppm
8
Tin
ppm
0
Nickel
ppm
1
Silicon
ppm
23
Sodium
ppm
4
Boron
ppm
28
Vanadium
ppm
0
Calcium
ppm
2631
Phosphorus
ppm
1029
Zinc
ppm
1199
Magnesium
ppm
56
Barium
ppm
0
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post #34 of 240 Old 2nd November 2012, 10:27 PM
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post #35 of 240 Old 3rd November 2012, 11:04 AM Thread Starter
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Hi,

Thanks for posting your oil lab. Its good to know how engine parts are aging. Looks like a good oil too.

I would be little bit not much about your Lead #8 getting close to 10 is not a good sigh. The famous 3.8 rod bearings are showing its age.

A preventative maintenance is not a bad idea some times.

One time I read a very nice thought/logo of a Dentist office says "Don't wait till hurts it's going to be too late!" Deff remember that. Ever since I visit the dentist more than 2wise a year for check ups.

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 November 2012 at 11:05 AM.
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post #36 of 240 Old 3rd November 2012, 03:58 PM
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Quote:
Originally Posted by GregT53 View Post
What brand oil did you have analyzed? Synthetic or non-synthetic?
10w40 semi synthetic. Davidoli knows the brand as he did it, I forget....

Quote:
Originally Posted by First e28 M5 View Post
Hi,

Thanks for posting your oil lab. Its good to know how engine parts are aging. Looks like a good oil too.

I would be little bit not much about your Lead #8 getting close to 10 is not a good sigh. The famous 3.8 rod bearings are showing its age.

A preventative maintenance is not a bad idea some times.

One time I read a very nice thought/logo of a Dentist office says "Don't wait till hurts it's going to be too late!" Deff remember that. Ever since I visit the dentist more than 2wise a year for check ups.

Anri
Thanks Anri, that's a helpful observation. One of the main reasons I did this was to detect bearing wear, as I know my car was not used much in the 8 years before I bought it and I was worried oil may have eaten the bearings a little. The lab advised me to do another test a few thousand miles into the next batch of oil and look at trends. If lead goes up then rod bearings is certainly a job that I would consider. I would be interested to get advice on the threshold for concern (you seem to think it is 10?) as the generic (ie non S38 specific) advice from the lab was that up to 20, and maybe higher is fine.
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post #37 of 240 Old 4th November 2012, 02:50 AM Thread Starter
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Quote:
Originally Posted by MattH View Post
I would be interested to get advice on the threshold for concern (you seem to think it is 10?) as the generic (ie non S38 specific) advice from the lab was that up to 20, and maybe higher is fine.
Hi,

Well, I spoke with BlackStone oil lab rep and he was sharing that Lead #10 is deff on the higher/North side bearing ware. Is it going to increase in the future sure it will.

Note from the beginning of this thread different lab test and Compare yours # to ours. Then you will see were are you going up or down in numbers.

Always compare! is what I always like to do. Say you see min 5 oil lab tests and compare it with yours and on all the Lead does not pass more than #5-6 then you should think about it. For example on S62 from many oil lab tests the Lead is Normal to be near by #10. When you change one day the rod bearings you will see how worn they are and then you will get back to Lead # and get an idea...

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/
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Last edited by First e28 M5; 4th November 2012 at 04:41 PM.
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post #38 of 240 Old 20th November 2012, 11:39 PM
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On about mile 2,300 of 3,000. My commute to work is very short so I am making sure to find excuses to beat the miles into the 192k mile car. Hopefully I will get the results back while there is still so much attention on all of the results. I am using the same oil Greg is using, too. We only live a few miles away from eachother so the climates are the same. It will be interesting to see the differences between his low mileage S38 and my high mileage one.
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post #39 of 240 Old 21st November 2012, 07:23 AM Thread Starter
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Quote:
Originally Posted by 91Champagne View Post
On about mile 2,300 of 3,000. My commute to work is very short so I am making sure to find excuses to beat the miles into the 192k mile car. Hopefully I will get the results back while there is still so much attention on all of the results. I am using the same oil Greg is using, too. We only live a few miles away from eachother so the climates are the same. It will be interesting to see the differences between his low mileage S38 and my high mileage one.

Great to hear more enthusiast people are joining the comparison !

Cant wait to see the results and compare

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 #40 of 240 Old 24th January 2013, 12:23 AM
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Another Blackstone Report

Attached is my second oil analysis. It was done at around 2,900 miles. Everything looks good except the lead level, 6 ppm, is above average. Blackstone says it could be due to the octane boost fuel additive, but they are not certain. Their opinion is that it is nothing to be concerned about. Also, the Manganese level is quite high at 38 ppm. Anyone have an opinion on that?
Attached Files
File Type: pdf Blackstone_2.pdf (1.15 MB, 76 views)
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