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      09-19-2014, 11:29 AM   #1
douglee25
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Blackstone Report - '08 - 77k miles

Well my oil report came in. I understand oil analysis is about trending from multiple reports, but with that said, it's hard to ignore the high lead content at almost 7X the industry average.

The engine exhibits no noises, however during the oil change, I did find small specs of metal in the oil filter and in the pan.

I will probably run another oil change in 2000 miles and see how things look. It does appear that bearing replacement is evident.


EDIT - To clarify RE: 2000 miles....

2000 miles was the mileage that could be completely accounted for before I did an oil change. Mileage before I purchased the vehicle and when the last oil change was completed is unknown to me. I drove it home from the dealership 1250 miles, the dealer told me they put 400 miles on it while it was at their place, and then I put an additional 350 miles or so before I did the oil change.


Any other thoughts?

Doug


Edit - Here's a link to the rod bearing replacement I did afterwards - http://www.m3post.com/forums/showthr...4#post16720744



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File Type: pdf E90 M3-091214v1.pdf (18.3 KB, 15 views)

Last edited by douglee25; 10-02-2014 at 07:10 AM.
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      09-19-2014, 12:55 PM   #2
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If that was my report I would do just about what you say. Check it in 2k.

I would be nervous driving it until I got the all clear. Which could happen.
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      09-19-2014, 01:05 PM   #3
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Yeah that is a high lead level for such low miles on the oil. Would make me nervous.
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      09-19-2014, 01:12 PM   #4
douglee25
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I should post this in the beginning post as well, but for the record, the 2000 miles was what could be completely accounted for. Mileage before that and when the last oil change was completed is unknown to me. I drove it home from the dealership 1250 miles, the dealer told me they put 400 miles on it while it was at their place, and then I put an additional 350 miles or so before I did the oil change.

The oil could have 15,000 miles on it for all I know?

Again, no noises whatsoever from the engine. I'm crossing my fingers that I'm not doing damage to it before I reach the next 2000 mile mark.

Doug
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      09-19-2014, 01:16 PM   #5
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I'd throw some wpc bearings in there asap. Why wait?
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      09-19-2014, 01:18 PM   #6
douglee25
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I mean I guess I could... do you think I'm making a bad decision?

Doug
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      09-19-2014, 01:44 PM   #7
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copper is the killer metal....i don't think waiting a couple of thousand miles is too risky.
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      09-19-2014, 02:33 PM   #8
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The high lead can be due to hard driving as said by Black Stone. The 400 miles at the dealership could have been very hard miles.

It may not need bearings. Oil analysis is about the trends. If lead stays high, and copper is soon to follow, then change the bearings.

IF they sold you a car with bad bearings, press them to replace them before the engine goes and you make them replace that.

Last edited by 4corners; 09-19-2014 at 02:50 PM.
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      09-19-2014, 03:07 PM   #9
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You wanna switch to Mobil 1 0W40 ASAP!
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      09-19-2014, 05:17 PM   #10
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Ya, mileage is an unknown variable which makes it difficult to truly read. However 7x the average is pretty high even if it was 15k miles.
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      09-19-2014, 05:42 PM   #11
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Moly is extremely high in the sample as well, and it makes me wonder if there was some additive used in addition to the oil itself.
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      09-19-2014, 06:08 PM   #12
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Since the car was not in the OP's control the whole time that was covered by that oil service interval, it is hard to trust the results entirely. Especially while octane boosters containing tetraethyl lead are still being sold. Tough call though...
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      09-19-2014, 06:12 PM   #13
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Quote:
Originally Posted by Beemdog View Post
Since the car was not in the OP's control the whole time that was covered by that oil service interval, it is hard to trust the results entirely. Especially while octane boosters containing tetraethyl lead are still being sold. Tough call though...
If it were me I would have the bearings inspected without a doubt... If you have a warranty that will cover a failure, you have more piece of mind.. But without that, it's a gamble I certainly wouldn't take.
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      09-19-2014, 06:26 PM   #14
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Quote:
Originally Posted by SenorFunkyPants View Post
copper is the killer metal....i don't think waiting a couple of thousand miles is too risky.

Agreed. Wait a few thousand miles and take another sample. If you keep seeing very high wear metals, especially copper, then you may want to consider replacing the rod bearings.
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      09-19-2014, 08:14 PM   #15
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Quote:
Originally Posted by douglee25 View Post
I mean I guess I could... do you think I'm making a bad decision?

Doug
If you found metallic particles in the oil and oil filter you need to move ASAP to getting this taken care of. Don't wait until you spin a bearing...

Dave
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      09-19-2014, 08:15 PM   #16
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Quote:
Originally Posted by Mike Benvo View Post
If it were me I would have the bearings inspected without a doubt... If you have a warranty that will cover a failure, you have more piece of mind.. But without that, it's a gamble I certainly wouldn't take.
Hey Mikey..how you doing?
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      09-20-2014, 12:32 PM   #17
douglee25
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Quote:
Originally Posted by SenorFunkyPants View Post
copper is the killer metal....i don't think waiting a couple of thousand miles is too risky.
This is where my thinking was as well. With zero engine noise and copper in spec on the report, I'm under the assumption that things haven't progressed to the 'red' just yet.

Good input from everyone thus far.

Doug
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      09-20-2014, 01:12 PM   #18
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+1 on doing another in 2k, that oil could have 12k-20k miles you never know.
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      09-20-2014, 01:45 PM   #19
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To have metal shavings in the filter and oil pan is incredibly bad news. I wouldn't even bother waiting. I would even suggest taking it back to the dealer.
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      09-20-2014, 01:48 PM   #20
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Also, no noises or rod knock doesn't mean all is good. All local engines that have let go here, all happened immediately and unexpectedly and damage the blocks, rods and crank. It's a real gamble
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      09-20-2014, 02:55 PM   #21
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Quote:
Originally Posted by MFKN3 View Post
To have metal shavings in the filter and oil pan is incredibly bad news. I wouldn't even bother waiting. I would even suggest taking it back to the dealer.
This! Even if you don't have warranty, do you get 3000 miles limited warranty in PA?
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      09-20-2014, 06:44 PM   #22
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If it was my car, I would already have made an appointment to have the bearings at least checked and possibly replaced. I don't gamble with $20K motors.
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