Blackstone Oil Analysis Reports

[Feffman]

Gents:

My latest "Every other oil change" Blackstone oil report. All seems well barring a little too much fuel (I mentioned it to them) due to cold starts and short moves around the mechanic's shop.

Feff

[mcfreid]

Here's the last blackstone report at around 110k miles, prior to rod bearings replaced (see https://nam3forum.com/forums/forum/m...el-performance for more info). The car is an 06, owned since 60k, and I've been changing the oil every 5-10k miles with LiquiMoly 10W-60. And every 15-20k miles I would add LiquiMoly CeraTec. The used rod bearings from the 110k mile replacement are also shown below. Not too shabby, but considering switching to standard Castrol for the OEM-peace-of-mind. Thoughts?

[Carl Spackler]

To add some content to this new forum; here is the Blackstone Report from my 05 with original 100k bearings. I ended up having them replaced a few hundred miles later. They are not in order and there was no wear on the inside of one set.

[Ceelooboob]

Here is my last oil analysis report. Would’ve had 3 tests but one got lost in the mail, damn USPS. My M3 is an 04 and I haven’t changed the bearings yet.

[C///M]

Here's the last blackstone report at around 110k miles, prior to rod bearings replaced (see https://nam3forum.com/forums/forum/m...el-performance for more info). The car is an 06, owned since 60k, and I've been changing the oil every 5-10k miles with LiquiMoly 10W-60. And every 15-20k miles I would add LiquiMoly CeraTec. The used rod bearings from the 110k mile replacement are also shown below. Not too shabby, but considering switching to standard Castrol for the OEM-peace-of-mind. Thoughts?

I used to be all about the OEM Castrol 10w-60 and I can honestly say, LiquiMoly has been a big improvement for my Blackstone analysis; my M3 sees mostly track and currently has original 102k bearings.

[mcfreid]

I used to be all about the OEM Castrol 10w-60 and I can honestly say, LiquiMoly has been a big improvement for my Blackstone analysis; my M3 sees mostly track and currently has original 102k bearings.

Do you have reports from your Castrol days and your LiquiMoly days? Curious to see the difference on the same car, over time.

[Smitsky089]

Latest report - 2005, 68k miles, original bearings

[Flat-Six]

First two with Supercar 10/60, last one was BMW M Twin 10/60. I also changed the oil between the first two at 85940, just did not get it analyzed.

03 M3-200111.pdf

[bran.stum]

Mine at 175k miles. I only use BMW 10w60for oil changes and just use Castrol Supercar 10w60 if I need to top it off between changes. My oil change intervals are every 7500mi. I sent a sample out for analysis after my recent oil change (190k). Car is on its 3rd set of bearings too (factory replaced at 32k under service bulletin, 2nd set replaced by PO at 162k).

[mrgizmo04]

My favorite thread is on the new forum

[Feffman]

Most recent Blackstone oil analysis report. Looking pretty good.

Feff

[cobra]

Am I screwed?

[jbfrancis3]

Am I screwed?

At 100k, it would be time to do the bearings. I’ve noticed early bearing wear doesn’t always show up in oil trend analysis, so the fact that its showing up confirms its time.

[elbert]

At 100k, it would be time to do the bearings. I’ve noticed early bearing wear doesn’t always show up in oil trend analysis, so the fact that its showing up confirms its time.

+1. Definitely get it done before your crankshaft gets scored. At that point you'll be screwed.

[Chanman1029]

Here is my my most recent oil report after the car sat untouched, and not started for 11 months.

The car is currently getting the engine completely rebuilt, due to suspected valve stem leakage. I don’t currently have pictures of what the rod bearing looked like, but I was told by the engine builder, that “they are definitely worn pretty good”. I guess it was a pretty good time to replace everything!