Blackstone Lab oil report - 2005 SLK350 - Mercedes Benz SLK Forum

SLK R171 General Discussion SLK 200, SLK 280, SLK 300, SLK 350, SLK 55 AMG

 
LinkBack Thread Tools
#1 Old 01-17-2007
Registered Users
 
Join Date: Jul 2006
Vehicle: SL550, E500
Posts: 52
Country:
Chats: 0
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 3 Times in 3 Posts
(Thread Starter)
Blackstone Lab oil report - 2005 SLK350

Thought I would share this lab report. This SLK is 26 months old and the oil has been changed at approximately 6500 mile intervals. Oil consumption is nil. I still have the oil from the last change and plan to weigh it an compare it to the value expected per the MB oil consumption test.
Attached Files
File Type: pdf SLK350_oil_report.pdf (628.2 KB, 134 views)
fgwinn is offline  
Sponsored Links
Advertisement
 
#2 Old 01-17-2007
DansSlk
Guest
 
Posts: n/a
Chats:
Mentioned: Post(s)
Tagged: Thread(s)
Quoted: Post(s)
Good to hear
#3 Old 01-18-2007
Registered Users
 
Join Date: Jun 2006
Posts: 303
Country:
Chats: 0
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 2
Thanked 1 Time in 1 Post
Good news and a glowing report!
ierax is offline  
 
#4 Old 01-18-2007
Founding Member

 
Ynot's Avatar
 
Join Date: Jun 2006
Location: Colorado
Vehicle: 06' MBZ SLK
Posts: 4,599
Country:
Chats: 0
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 23 Post(s)
Thanks: 1,013
Thanked 402 Times in 285 Posts
Garage
Nice to see you posting again fgwinn.

997 TPC turbo C4S
981 Boxster S
06' SLK 350, Iridium/Ash all pkgs. 6-spd, 19" DCR. (Gone but not forgotten)


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
Ynot is offline  
#5 Old 01-18-2007
Founding Member #2

 
etyu's Avatar
 
Join Date: Jun 2006
Location: Orange County, CA
Vehicle: 2008 SLK 55
Posts: 19,390
Country:
Chats: 11
Mentioned: 76 Post(s)
Tagged: 0 Thread(s)
Quoted: 345 Post(s)
Thanks: 4,571
Thanked 3,141 Times in 2,269 Posts
Garage
thanks for the report fgwinn. Do report back on your experience.

Eddy



To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

Pewter(cubanitsilber metallic)/Beige, PIII package, Airscarf, Hands-Free Communication System, Lighting package; Designo Black Leather Cover on e-brake handle(Thank you Bill T), SmartTop v3.x, John's 3BFM, M113 AMG OEM air filters, Modified R170 ant., clear side-markers & front parking lamps w/error-free LEDs, chromed front & rear turn indicator lamps, steel mesh at battery bay cover & cabin air intake, sock-over-seatbelt buckles, belt-loop guide protectors, Lamin-X fog lamp protectors, bilateral rear fog lamps enabled, AMG crest on gear shift knob
etyu is offline  
#6 Old 01-18-2007
Registered Users
 
Join Date: Jul 2006
Location: Skokie, Illinois
Posts: 775
Country:
Chats: 0
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 40 Times in 36 Posts
fgwinn, Many of us old timers missed you. Don't be a stranger.

Mel
Duo-Art is offline  
#7 Old 01-18-2007
Registered Users
 
Join Date: Jul 2006
Vehicle: SL550, E500
Posts: 52
Country:
Chats: 0
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 3 Times in 3 Posts
(Thread Starter)
I will definitely report back when I determine the weight of the oil removed at the last oil change. Does anyone know the target net weight for the oil? I saw it once on the procedure for the oil consumption test, but, that was some time ago and I have misplaced that document. If someone has the info handy I would appreciate it.

Quote:
Originally Posted by etyu View Post
thanks for the report fgwinn. Do report back on your experience.
fgwinn is offline  
#8 Old 01-19-2007
Founding Member #2

 
etyu's Avatar
 
Join Date: Jun 2006
Location: Orange County, CA
Vehicle: 2008 SLK 55
Posts: 19,390
Country:
Chats: 11
Mentioned: 76 Post(s)
Tagged: 0 Thread(s)
Quoted: 345 Post(s)
Thanks: 4,571
Thanked 3,141 Times in 2,269 Posts
Garage
Quote:
Originally Posted by fgwinn View Post
I will definitely report back when I determine the weight of the oil removed at the last oil change. Does anyone know the target net weight for the oil? I saw it once on the procedure for the oil consumption test, but, that was some time ago and I have misplaced that document. If someone has the info handy I would appreciate it.
PM bclark. I'm fairly certain he still has the documents on oil consumption on file.

Eddy



To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

Pewter(cubanitsilber metallic)/Beige, PIII package, Airscarf, Hands-Free Communication System, Lighting package; Designo Black Leather Cover on e-brake handle(Thank you Bill T), SmartTop v3.x, John's 3BFM, M113 AMG OEM air filters, Modified R170 ant., clear side-markers & front parking lamps w/error-free LEDs, chromed front & rear turn indicator lamps, steel mesh at battery bay cover & cabin air intake, sock-over-seatbelt buckles, belt-loop guide protectors, Lamin-X fog lamp protectors, bilateral rear fog lamps enabled, AMG crest on gear shift knob
etyu is offline  
#9 Old 02-11-2007
Registered Users
 
Join Date: Jul 2006
Vehicle: SL550, E500
Posts: 52
Country:
Chats: 0
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 3 Times in 3 Posts
(Thread Starter)
Oil consumption calculation

I calculated my "oil consumption" between oil changes today. I will be the first to admit that there are plenty of opportunities for error. But overall I am satisfied that my SLK350 is using very little if any oil.

First some background. My SLK350 is just over two years old. I have completed two oil changes. One at about 6500 miles and the second at close to 13000 miles. In my case the one year interval is the basis for the oil change rather than the mileage.

The first time I changed the oil, I raised the car at all four corners to keep it level. I used a Mityvac (air compressor model) to suck out the oil. Then I removed the drain plug to check if there was any remaining oil. A puddle about four inches in diameter coated the bottom of a small metal pan. In other words, I got almost no additional oil through the drain plug.

I refilled the engine with 8.5 quarts of Mobil-1 0w-40 oil. I used the marks on the last 1 quart container to estimate 1/2 quart. I also did not weigh the new oil containers before and after they were emptied. This is the first opportunity for error.

When I changed the oil a few weeks ago I only used the Mityvac and did not bother to remove the oil drain plug. The *volume* of oil measured just over the 8 liter mark on the Mityvac container (about 8mm above the 8 liter mark) with the oil at operating temperature. Today when I weighed the oil it was at least 20mm lower than when I drained it. This is due to the fact that it is only about 20 degrees F in my garage. This is the reason that MB weighs the oil rather than measure the volume for the oil consumptions test.

I added about 120ml of oil to the drained oil to compensate for the sample I sent to Blackstone Labs. I wrapped the filled Mityvac in a large black plastic bag and took it to the automated mailing station at the local Post Office to determine the total weight. I recommend doing this during non-business hours to avoid as many people as possible.

Next step was to dump the oil at the auto store recyling container and then head back to the Post Office to determine the tare weight of the Mityvac. It would have been nice to have weighed the Mityvac when it was new out of the box. There is alway a little trace of oil in the Mityvac after emptying it. This is another opportunity for error. If you decide to do a similar calculation, don't just accept the tare weight for my Mityvac. Weigh your specific unit.

The net weight of the oil according to the MB consumption test bulletin is 14.95 pounds. The scale I used read in pounds and ounces, so I converted the weights to decimal equivalents for ease of calculation.

19.6375 pounds = Total weight of Mityvac and drained oil.
-4.9375 pounds = Empty weight of Mityvac.
---------
14.7000 pounds = Weight of drained oil.
+0.2500 pounds = "Oil consumption"
---------
14.9500 pounds = Target weight of 8 liters of oil.

14.95 divided by 8 liters = 1.86875 pounds per liter. The unaccounted for difference of 0.25 pounds of oil comes to 134ml (0.25 / 1.86875). Given the opportunities I had to introduce errors into the measurement process, I would consider 134ml the equivalent of no consumption at all.

Unfortuanately, I did not weigh the oil I used to refill the engine when I changed the oil a few weeks ago. I will probably do that on the next oil change and then do a more precise comparison when I change the oil just before the warranty expires in late 2008.
fgwinn is offline  
#10 Old 02-12-2007
Registered Users
 
Join Date: Jun 2006
Location: Oak Park, Illinois, USA
Vehicle: 2005 Black SLK
Posts: 294
Country:
Chats: 0
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 23
Thanked 6 Times in 3 Posts
Quote:
Originally Posted by etyu View Post
PM bclark. I'm fairly certain he still has the documents on oil consumption on file.
ETYU: I actually never received the exact data, only that my oil
consumption met criteria for engine replacement. BTW, just got
back from skiing Vail for 9 days. Exhilarating! Probably much
like driving an SLK 55 at 120+ mph (I wouldn't know but sounds
like you might soon have the chance)
bclark is offline  
#11 Old 02-12-2007
Founding Member #2

 
etyu's Avatar
 
Join Date: Jun 2006
Location: Orange County, CA
Vehicle: 2008 SLK 55
Posts: 19,390
Country:
Chats: 11
Mentioned: 76 Post(s)
Tagged: 0 Thread(s)
Quoted: 345 Post(s)
Thanks: 4,571
Thanked 3,141 Times in 2,269 Posts
Garage
Quote:
Originally Posted by bclark View Post
ETYU: I actually never received the exact data, only that my oil
consumption met criteria for engine replacement. BTW, just got
back from skiing Vail for 9 days. Exhilarating! Probably much
like driving an SLK 55 at 120+ mph (I wouldn't know but sounds
like you might soon have the chance)
keeping my fingers crossed.

Eddy



To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

Pewter(cubanitsilber metallic)/Beige, PIII package, Airscarf, Hands-Free Communication System, Lighting package; Designo Black Leather Cover on e-brake handle(Thank you Bill T), SmartTop v3.x, John's 3BFM, M113 AMG OEM air filters, Modified R170 ant., clear side-markers & front parking lamps w/error-free LEDs, chromed front & rear turn indicator lamps, steel mesh at battery bay cover & cabin air intake, sock-over-seatbelt buckles, belt-loop guide protectors, Lamin-X fog lamp protectors, bilateral rear fog lamps enabled, AMG crest on gear shift knob
etyu is offline  
#12 Old 08-10-2009
Registered Users
 
Join Date: Jul 2009
Posts: 2
Country:
Chats: 0
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Your report shows very low wear metals. That is good but don't count on it as meaning you don't or can't have problems. Those tests measure particles in the 1 - 10 micoron range very well. Larger wear particles won't show up. If you will sample the oil consistanly then it will give you a much better picture of what is happening in the engine. And the converse it true as well, a one time 500 ppm of iron in a sample doesn't mean your block in melting down either. But you would want to take notice obviously.

STLE: Certified Lubrication Specialist
SLKDFW is offline  
#13 Old 08-10-2009
Registered Users
 
GeeJay's Avatar
 
Join Date: Jan 2009
Location: North-West Blighty.....
Vehicle: '16 C250d AMG Estate Premium+ Designo Hyacinth Metalic
Other Toys: Guitars... :-) Formerly '08 SLK200 6sp Palladium
Posts: 5,134
Country:
Chats: 91
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 70 Post(s)
Thanks: 652
Thanked 793 Times in 574 Posts
Quote:
Originally Posted by SLKDFW View Post
Your report shows very low wear metals. That is good but don't count on it as meaning you don't or can't have problems. Those tests measure particles in the 1 - 10 micoron range very well. Larger wear particles won't show up. If you will sample the oil consistanly then it will give you a much better picture of what is happening in the engine. And the converse it true as well, a one time 500 ppm of iron in a sample doesn't mean your block in melting down either. But you would want to take notice obviously.

STLE: Certified Lubrication Specialist
Thanks, that's good to know. But as the initial post is some two and a half years old, the information is perhaps useful in a more general sense. Thanks for the insight..
GeeJay is offline  
Sponsored Links
Advertisement
 
Reply

  Lower Navigation
Go Back   Mercedes Benz SLK Forum > Mercedes Benz R171 SLK Class Cars > SLK R171 General Discussion

Bookmarks

Quick Reply
Message:
Options
Upload your files to MEGAUPLOAD
Upload your images to ImageShack

Register Now



In order to be able to post messages on the Mercedes Benz SLK Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
new member, used 2005 slk350 jkatt New Members Introduce Yourself Here 24 01-08-2011 12:41 AM
2005 SLK350 Oil Consumption Connecticut Roy SLK R171 General Discussion 42 12-08-2010 01:10 PM
2005 SLK350 questions Henryhank SLK R171 General Discussion 19 03-27-2008 02:34 AM
engine for a 2005 slk350 zipo Where to get R171 SLK Items 20 11-21-2007 11:40 AM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome
 

Clubs, Garage Plus vBulletin Plugins by Drive Thru Online, Inc.