C6 Tech/Performance LS2, LS3, LS7, LS9 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

Blackstone oil report

Thread Tools
 
Search this Thread
 
Old Sep 16, 2014 | 11:43 AM
  #1  
12zo's Avatar
12zo
Thread Starter
Racer
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Dec 2013
Posts: 418
Likes: 32
From: Ct
Default Blackstone oil report

Got my first oil report back from Blackstone.
I got the car at 1800 miles from a dealer who said they did an oil change.

So, assuming they really did... I changed the oil at 2300mi so 500 miles or so on this sample. In those 500 miles I saw probably half street and half track.

I am sending in my next one today after another 500 miles of mostly track.

It is noted in the report that the iron number is high. I called them to inquire why. The average is 38, mine says 20, why is that high?

The answer is because the "universal averages" are for oil that has seen 2300-3300 miles. Mine was only 500.

So, an iron count of "20" is high for 500 miles, although they feel the car is still "breaking in" at 2300 miles.

Comments appreciated. I'll know a lot more after I send this next sample in but any feedback is good.

The iron count of 20 is highlighted. All the additive numbers down near the bottom are fine they say and can vary because people use different oils.
Attached Images  
Reply
Old Sep 16, 2014 | 01:04 PM
  #2  
12zo's Avatar
12zo
Thread Starter
Racer
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Dec 2013
Posts: 418
Likes: 32
From: Ct
Default

I am now really wondering if the selling dealer did an oil change if my oil doesn't resemble what most would look like at a 500 mile initial interval...
Reply
Old Sep 16, 2014 | 01:21 PM
  #3  
cclive's Avatar
cclive
Team Owner
 
Joined: Mar 2008
Posts: 21,502
Likes: 462
From: Southern Utah
Default

I doubt that the dealer did a change, but not because of the oil report, just because dealers tend not to do anything that is not absolutely necessary. At that mileage, the engine is certainly still breaking in, so I wouldn't get too concerned about any values in the report unless something is way out of spec.
Reply
Old Sep 17, 2014 | 09:38 AM
  #4  
12zo's Avatar
12zo
Thread Starter
Racer
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Dec 2013
Posts: 418
Likes: 32
From: Ct
Default

Anyone else have a Blackstone report with high iron counts?
What about all you valve issue guys?
I don't know what worn valve guides would show in a report.

I do believe my high iron is because the selling dealer never did the oil change as asked when I bought her with 1800mi on the odo.

If they had not changed the oil, this report would look pretty normal for a first change at at 2300 miles.

Seeing that they "say" they did it, and I did call them yesterday to verify, I still will need to see another report to tell if anything is going on.
Reply
Old Sep 17, 2014 | 02:33 PM
  #5  
Rob 99's Avatar
Rob 99
I'm "Apache" a psycho dog
Supporting Lifetime
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Jan 2001
Posts: 3,085
Likes: 31
From: N.J.
Default

Originally Posted by 12zo
Anyone else have a Blackstone report with high iron counts?
What about all you valve issue guys?
I don't know what worn valve guides would show in a report.

I do believe my high iron is because the selling dealer never did the oil change as asked when I bought her with 1800mi on the odo.

If they had not changed the oil, this report would look pretty normal for a first change at at 2300 miles.

Seeing that they "say" they did it, and I did call them yesterday to verify, I still will need to see another report to tell if anything is going on.


here is my report i copied & pasted, excuse the format . this was the first oil change on my brand new '13 my numbers are higher than yours considering the fact of miles between our samples (5323 vs 500) a lot of the initial break in metals were removed from the original oil in your engine so I would tend to believe they changed the oil, I should
See a similar # as yours next time around (although I'm not changing at 500 more like 5-6000 mi.
Hope this compare helped
Rob.



MI/HR on Oil
5,323
UNIT / LOCATION AVERAGES

MI/HR on Unit
5,323
Sample Date
07/01/14
Make Up Oil Added
0 qts
ALUMINUM
12
CHROMIUM
3
IRON
143
COPPER
276
LEAD
1
TIN
0
MOLYBDENUM
70
NICKEL
1
MANGANESE
20
SILVER
0
TITANIUM
0
POTASSIUM
9
BORON
145
SILICON
64
SODIUM
14
CALCIUM
1763
MAGNESIUM
15
PHOSPHORUS
680
ZINC
723
BARIUM
1



Values Should Be*
SUS Viscosity @ 210°F
57.7
56-63
cSt Viscosity @ 100°C
9.56
9.1-11.3
Flashpoint in °F
410
>365
Fuel %
<0.5
<2.0
Antifreeze %
0.0
0.0
Water %
0.0
<0.1
Insolubles %
0.3
<0.6
TBN
TAN
Reply
Old Sep 18, 2014 | 07:28 AM
  #6  
Seadawg's Avatar
Seadawg
Safety Car
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Nov 2006
Posts: 3,667
Likes: 159
Default

Here's my last Blackstone report info.

https://www.corvetteforum.com/forums...and-sport.html

My iron was "18", after 7324 miles, but don't really know what that means as a comparison for yours, so be careful as you compare numbers between the reports.
Reply
Old Sep 18, 2014 | 10:36 AM
  #7  
erick_e's Avatar
erick_e
Melting Slicks
Supporting Lifetime
15 Year Member
Veteran: Army
 
Joined: Aug 2006
Posts: 2,475
Likes: 97
From: KY/TN
St. Jude Donor '13-'14-'15-'16
Default

Originally Posted by 12zo
Anyone else have a Blackstone report with high iron counts?

My last sample had high iron after the heads were replaced.







I just sent in my 5000 mi resample, and it was received by Blackstone this am. I will post those results when I get them.
Reply
Old Sep 18, 2014 | 11:05 AM
  #8  
12zo's Avatar
12zo
Thread Starter
Racer
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Dec 2013
Posts: 418
Likes: 32
From: Ct
Default

Originally Posted by Rob 99
here is my report i copied & pasted, excuse the format . this was the first oil change on my brand new '13 my numbers are higher than yours considering the fact of miles between our samples (5323 vs 500) a lot of the initial break in metals were removed from the original oil in your engine so I would tend to believe they changed the oil, I should
See a similar # as yours next time around (although I'm not changing at 500 more like 5-6000 mi.
Hope this compare helped
Rob.



MI/HR on Oil
5,323
UNIT / LOCATION AVERAGES

MI/HR on Unit
5,323
Sample Date
07/01/14
Make Up Oil Added
0 qts
ALUMINUM
12
CHROMIUM
3
IRON
143
COPPER
276
LEAD
1
TIN
0
MOLYBDENUM
70
NICKEL
1
MANGANESE
20
SILVER
0
TITANIUM
0
POTASSIUM
9
BORON
145
SILICON
64
SODIUM
14
CALCIUM
1763
MAGNESIUM
15
PHOSPHORUS
680
ZINC
723
BARIUM
1



Values Should Be*
SUS Viscosity @ 210°F
57.7
56-63
cSt Viscosity @ 100°C
9.56
9.1-11.3
Flashpoint in °F
410
>365
Fuel %
<0.5
<2.0
Antifreeze %
0.0
0.0
Water %
0.0
<0.1
Insolubles %
0.3
<0.6
TBN
TAN
Rob,
I'm no expert but your iron and copper numbers look very high to me based upon the averages, albeit those being for typical oil changes on average at 3300mi.
My iron was high at 20 for oil that had supposedly only 500 miles on it.
That is why myself and my new dealer agree that in all likelihood the previous dealer did not change the oil at 1800 miles.
If he had, my iron numbers should have been way lower on oil with only 500 miles on it.
What oil do you run and what comments did Blackstone have?
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-7

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-8

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-9

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
Old Sep 18, 2014 | 11:17 AM
  #9  
12zo's Avatar
12zo
Thread Starter
Racer
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Dec 2013
Posts: 418
Likes: 32
From: Ct
Default

Originally Posted by erick_e
My last sample had high iron after the heads were replaced.







I just sent in my 5000 mi resample, and it was received by Blackstone this am. I will post those results when I get them.
Erik,
Thanks. Your sample is interesting too.
I see you had one sample with only 450 miles on the oil a while ago. That sample had similar iron to mine at 500 miles.
The next one seems normal.
I'm wondering what prompted a change with 450 miles and curious as to how we both have similar iron in those.
Reply
Old Sep 18, 2014 | 01:49 PM
  #10  
Speedforhire's Avatar
Speedforhire
Melting Slicks
10 Year Member
 
Joined: Mar 2011
Posts: 2,708
Likes: 83
From: Arkansas
Default

I just ordered the kit!
Reply
Old Sep 18, 2014 | 03:39 PM
  #11  
blkbrd69's Avatar
blkbrd69
Drifting
10 Year Member
 
Joined: Oct 2011
Posts: 1,684
Likes: 77
From: Orlando FL
Default

That report looks great.

Yes a bit of iron is due to rings scuffing and breaking in cylinder finish. Engine is still new.

Cars that dont get driven often tend to exibit slightly higher iron as the cylinders tend to get a slight flash of rust if sitting for long periods expecially in humid areas.

Roadcourse use, may want to look at a better oil. Looks like you are using M1 5w30?
Reply
Old Sep 18, 2014 | 07:07 PM
  #12  
erick_e's Avatar
erick_e
Melting Slicks
Supporting Lifetime
15 Year Member
Veteran: Army
 
Joined: Aug 2006
Posts: 2,475
Likes: 97
From: KY/TN
St. Jude Donor '13-'14-'15-'16
Default

Originally Posted by 12zo
Erik,
Thanks. Your sample is interesting too.
I see you had one sample with only 450 miles on the oil a while ago. That sample had similar iron to mine at 500 miles.
The next one seems normal.
I'm wondering what prompted a change with 450 miles and curious as to how we both have similar iron in those.
The sample with 450 miles on it, was taken as a baseline shortly after I got the car.

The heads were replaced in April 2013 at 36,000 miles, so the last sample was to see what was going on after the heads were replaced. My latest sample should be tested today has about 5000 miles on the oil, and right at 46,500 on the vehicle. I'll post that as soon as I get it.
Reply
Old Sep 18, 2014 | 10:27 PM
  #13  
Rob 99's Avatar
Rob 99
I'm "Apache" a psycho dog
Supporting Lifetime
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Jan 2001
Posts: 3,085
Likes: 31
From: N.J.
Default

Originally Posted by 12zo
Rob,
I'm no expert but your iron and copper numbers look very high to me based upon the averages, albeit those being for typical oil changes on average at 3300mi.
My iron was high at 20 for oil that had supposedly only 500 miles on it.
That is why myself and my new dealer agree that in all likelihood the previous dealer did not change the oil at 1800 miles.
If he had, my iron numbers should have been way lower on oil with only 500 miles on it.
What oil do you run and what comments did Blackstone have?
In your case you need to set your own history with changing and testing cause your not exactly sure what happened previously and don't have the luxury of the initial baseline, then you'll have a pattern you can trust.

As for my numbers I'm not to concerned now, if they don't drop and stay high then I'll have to worry about it then. My previous vette '07 &'04 had similar #'s at initial testing.
Also this oil was factory fill dexos and was in the engine for about a year & half 5323 miles(I know I don't drive it enuff ) as for Blackstone's comments here they are;

"ROB: When it comes to brand new engines, a lot of metal and silicon in the first sample isn't enough to make us cringe. The high metals are from new parts wearing in and the silicon is from harmless silicone sealers and sand casted parts. This engine initially makes a lot of metal, but after a few oil changes, this stuff should wash out and your samples should look a lot like universal averages (or better), which show typical wear for this type of GM engine after about 4,600 miles of oil use. No issues were found with the oil's physical properties. Check back to monitor progress.''
Reply
Old Sep 19, 2014 | 04:58 PM
  #14  
erick_e's Avatar
erick_e
Melting Slicks
Supporting Lifetime
15 Year Member
Veteran: Army
 
Joined: Aug 2006
Posts: 2,475
Likes: 97
From: KY/TN
St. Jude Donor '13-'14-'15-'16
Default

Just got my most recent results from Blackstone.

Reply

Get notified of new replies

To Blackstone oil report





All times are GMT -4. The time now is 10:30 PM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-9
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE