|
2006
Cadillac CTS-V Used Oil Analysis
Report
Engine Oil
C66 Racing team
owner Bradford Neff bought a 2006 Cadillac CTS-V as his daily driver in the
fall of 2006. The car was a used corporate car that had 7780 miles of use. In an attempt to
obtain information on the engine's performance over time, as well as how the
factory fluids compared to aftermarket alternatives such as AMSOIL, the team
intends to draw used oil samples after each oil change and submit them to
Blackstone Laboratories for analysis.
Used Oil Analysis History:
| Oil |
Mobil 1 5w30 |
|
|
|
Universal Lab
Averages |
| Oil Filter |
AC Delco PF46 |
|
|
|
|
| Miles on Oil |
2,856 |
|
|
|
|
| Miles on unit |
10,636 |
|
|
|
|
| Sample Date |
6/10/07 |
|
|
|
|
| Oil Life Monitor |
25% |
|
|
|
|
| |
ppm |
|
|
|
ppm |
| Aluminum |
5 |
|
|
|
4 |
| Chromium |
1 |
|
|
|
1 |
| Iron |
26 |
|
|
|
24 |
| Copper |
139 |
|
|
|
102 |
| Lead |
10 |
|
|
|
6 |
| Tin |
1 |
|
|
|
1 |
| Molybdenum |
66 |
|
|
|
73 |
| Nickel |
1 |
|
|
|
1 |
| Manganese |
66 |
|
|
|
4 |
| Silver |
0 |
|
|
|
0 |
| Titanium |
0 |
|
|
|
0 |
| Potassium |
2 |
|
|
|
1 |
| Boron |
26 |
|
|
|
54 |
| Silicon |
26 |
|
|
|
19 |
| Sodium |
4 |
|
|
|
5 |
| Calcium |
2588 |
|
|
|
2404 |
| Magnesium |
14 |
|
|
|
26 |
| Phosphorus |
661 |
|
|
|
662 |
| Zinc |
841 |
|
|
|
832 |
| Barium |
0 |
|
|
|
0 |
| |
|
|
|
|
|
| TBN |
3.6 |
|
|
|
Min 1.0 |
| SUS Viscosity @ 210F |
59.8 |
|
|
|
Range ~55-66 |
| |
Actual Blackstone Report |
|
|
|
|
Initial Fill
The engine oil and filter were changed by the dealer with GM Factory fill
for the CTS-V; Mobil 1 5w30 oil and an AC Delco PF-46 oil filter when the
car was purchased in October 2006.
Oil Change 6-10-07
After 2856 miles of driving, almost entirely short daily commutes of less
than 10 miles, and with 25% showing on the GM Oil Life Monitor, the oil and
filter were changed and replaced with
AMSOIL Series
2000 0w30 and an AMSOIL EAO32
EA Oil Filter.
Blackstone's comments on the sample result:
Factory oil fills tend
to have a lot of junk in them, so we're glad to see you've changed this
particular fill of oil out early. Once you get past the break-in
stage, you'll be able to run the oil longer than this (about 4000 miles is
average), but for now it's best to wash that extra stuff out of the block.
Copper will come down quite a ways over the next 20,000 miles. The
other metals will probably drop as well. Silicon is from sealers and
sand-casted parts, and it too should drop. The TBN read 3.6, still active
additive left in the oil. Check back to establish trends.
Our evaluation of the used oil
analysis report:
- As evidenced by the SUS
viscosity at 210F, the oil remained in grade for a 30 weight oil and did not
shear low out of grade or thicken
out of grade.
- As evidenced by the TBN of 3.6,
the oil had life remaining and this sample probably could have been taken
down to 0% remaining on the GM Oil Life Monitor.
- As evidenced by the ppm values
for the wear metals, primarily aluminum, iron, copper and lead, the engine
exhibited wear 8-66% above the universal lab averages. This is a
little disturbing given that the oil only had 2,856 miles on it, compared
with the universal average of about 4,000 miles. However, this may be
explained by the relatively short duration of most of the car's use, and
these numbers may come down as the engine completes its break-in.
Update
3-8-08 and 1-11-09:
Follow-on used oil analysis
reports using the AMSOIL Series 2000 0w30 can be seen here:
Cadillac CTS-V AMSOIL Series 2000 0w30
Used Oil Analysis Reports
Understanding the used oil analysis report
These two links to pages on
Blackstone Laboratories website provide background on the elements in the
used oil analysis report, as well as how to review and understand the
report:
Understanding the Elements
Understanding Your Gas/Diesel Engine Oil Report
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