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Old August 23rd, 2006, 08:00   #526
coal_burner
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Join Date: Mar 2006
Location: Berkley, MI
Fuel Economy: 49mpg constant
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coal_burner - what was your sampling method?

My sample was taken at about the 1/3 mark while draining the oilpan. The engine was hot immediately after about 25 miles of freeway driving.

No 5000 mile oil change?
Interesting that you selected Mobil 1, which is not approved for that engine (although I'm sure you know that part), and skipped the 5000 mile oil change.

Well the missed 5,000 mile oil change was kind of an accident. While glancing through my manual I saw that an oil change was only necessary at 10,000 mile intervals, I completely missed the part where it said change oil at 5,000 and 10,000 odo. readings. My bad
The oil I used was the best one I could find at my local Murray's automotive. My owners manual said that the oil I use should have some or all of the following certifications......
The Mobil1 Truck&SUV had the most matching certs so I bought it.
According to my owners manual, I did use an oil that is approved in my car.

BTW. I forgot to mention, my TBN reading was 4.5 .
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Old August 23rd, 2006, 08:07   #527
tditom
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Fuel Economy: Golf: 54/48/43.5 B4 Passat: 52/48.5/45 B5.5 Passat: 30 mpg mixed
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Quote:
Originally Posted by coal_burner
... My owners manual said that the oil I use should have some or all of the following certifications......
The Mobil1 Truck&SUV had the most matching certs so I bought it.
According to my owners manual, I did use an oil that is approved in my car...
What oils are called for in your manual? (API/ACEA/VW specs)
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Old August 23rd, 2006, 10:15   #528
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Location: San Antonio, TX
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Quote:
Originally Posted by d2305
That's interesting, I wonder if these labs are just random number generators?
Excellent point!

Remembering that there can be a 10% variation if the same operator repeats the tests in the same lab, and a 20% variation in result when conducted by different labs on the same oil sample, then factoring in differences in operator technique when extracting the samples, then remembering that no two engines wear or contaminate the oil the same even when running in the same conditions on the same fuel in a controlled lab, suggests to me (and apparently learned folks like the ISO and ASTM) that in-car testing is absolutely the last method that should be used to compare any lubricant.
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Old August 23rd, 2006, 21:45   #529
wjdell
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Does that not seem odd to have such high iron and soot yet the rest of the additives be so close. I do not know, I am just guessing that others would suffer from such a high iron and soot.
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http://forums.tdiclub.com/showthread.php?t=205814


~ USED OIL ANALYSIS ~ http://forums.tdiclub.com/showthread.php?t=190958
~
1.9 PD Jetta V ~ pkg 1 ~
DSG ~ 17" VV ~ 36/34 psi ~
ULSD ~ DG-BP90 - speed 39.2
hwy/city 83% / 17% ~
elev 58 ft / temp 72 F / humidity 76% ~ MPG 48.3 / 42.8 / 35.6

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Old August 24th, 2006, 09:16   #530
Sloppy Snood
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Question Elf 0w-30 CRV 506.01 at 18,110 Miles

Sloppy's 4th UOA from Oil Analyzers Inc. is available. Oil is Elf Evolution 0W-30 CRV 506.01.

18,110 miles on the oil.
42,180 miles total on the 2005.5 Passat GLS.

Iron: 118
Chromium: 8
Lead: 9
Copper: 12
Tin: 0
Aluminum: 25
Nickel: 7
Silver: 0
Silicon: 9
Boron: 42
Sodium: 0
Magnesium: 279
Calcium: 3268
Barium: 0
Phosphorus: 1204
Zinc: 1325
Molybdenum: 3
Titanium: 0
Vanadium: 0
Potassium: 0

Fuel: <1%
Viscosity @ 100°C: 11.70
Water : 0
Soot/Solids: 1.26
Coolant (glycol): no

TBN: 4.86
Oxid: n/a
Nitr: n/a
Change YES

"No corrective action required. Oil is suitable for continued use. Resample at next regular interval."

As stated previously, Sloppy's running Elf Evolution 0W-30 CRV 506.01 as of 24,070 miles. Oil change has been completed after a Motul Diesel System Cleaner treatment. New Elf Evolution 0W-30 CRV 506.01 added to the motor following the Motul treatment.

What say you AndyH and SUNRG?- Sloppy Snood
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Old August 24th, 2006, 10:45   #531
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Quote:
Originally Posted by Sloppy Snood
Sloppy's 4th UOA from Oil Analyzers Inc. is available. Oil is Elf Evolution 0W-30 CRV 506.01.

18,110 miles on the oil.
42,180 miles total on the 2005.5 Passat GLS.

Iron: 118
Chromium: 8
Lead: 9
Copper: 12
Tin: 0
Aluminum: 25
Nickel: 7
Silver: 0
Silicon: 9
Boron: 42
Sodium: 0
Magnesium: 279
Calcium: 3268
Barium: 0
Phosphorus: 1204
Zinc: 1325
Molybdenum: 3
Titanium: 0
Vanadium: 0
Potassium: 0

Fuel: <1%
Viscosity @ 100°C: 11.70
Water : 0
Soot/Solids: 1.26
Coolant (glycol): no

TBN: 4.86
Oxid: n/a
Nitr: n/a
Change YES

"No corrective action required. Oil is suitable for continued use. Resample at next regular interval."

As stated previously, Sloppy's running Elf Evolution 0W-30 CRV 506.01 as of 24,070 miles. Oil change has been completed after a Motul Diesel System Cleaner treatment. New Elf Evolution 0W-30 CRV 506.01 added to the motor following the Motul treatment.

What say you AndyH and SUNRG?- Sloppy Snood
here's a link to the previous two analyses on this oil sample - LINK

here's your Fe wear rate trend:
  • 6.70ppm / 1000 miles (miles 0 to 5515) to
  • 5.78ppm / 1000 miles (miles 5515 to 12094)
  • 7.79ppm / 1000 miles (miles 12094 to 18110)
your engine is still quite young (~42k) and it is the larger 2.0l/134hp model - so these wear rates are OK.

since you are extending drains i think (my opinion) it's good that you used Motul Engine Clean too. i am changing the ELF Evolution CRV 506.01 in my Golf right now after ~18,300 miles and i used Motul's Engine Clean as well.

i'd sample at 6k, 12k and 18k again this time around and if there's a significant increase in the wear rate from 12k to 18k then maybe shorten the third oil sample interval down to 17k (6, 12, 17).

your Fe wear dropped from 5-12k compared to 0-5k, but in this OCI the wear rate began to increase at some point in the 12-18k range. the question is when. if this pattern does repeat itself, then like i mentioned above you can shorten the third OSI until the wear rates are similar to the first two OSIs.

if this pattern does repeat itself is the question - i think there's a good chance that during subsequent 18k OCIs the final OSI 6-12k will yield low wear rates because amazingly your engine is still wearing in...

cheers!
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Old August 24th, 2006, 14:05   #532
Sloppy Snood
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Question

Quote:
Originally Posted by SUNRG
if this pattern does repeat itself is the question - i think there's a good chance that during subsequent 18k OCIs the final OSI 6-12k will yield low wear rates because amazingly your engine is still wearing in...cheers!
While I understand there is not an exact number or science to automobile "break in," how long does it usually take with the newer PD engines? Does some have a PD engine that is considered to be "broke in?" In particular, I am speaking to the 2.0-liter PD diesel engines that operate at much higher pressures than the 1.9-liter engines.

Comments?
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