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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 |
AMSOIL Series 2000 0w30 |
AMSOIL Series 2000 0w30 |
Mobil 1 5w30 |
|
|
Universal Lab
Averages |
| Oil Filter |
EAO32 |
EAO32 |
AC Delco PF46 |
|
|
|
| Miles on Oil |
3,006 |
3,300 |
2,856 |
|
|
|
| Miles on unit |
16,942 |
13,936 |
10,636 |
|
|
|
| Sample Date |
1/11/09 |
3/8/08 |
6/10/07 |
|
|
|
| Oil Life Monitor |
25% |
25% |
25% |
|
|
|
| |
ppm |
ppm |
ppm |
|
|
ppm |
| Aluminum |
3 |
4 |
5 |
|
|
4 |
| Chromium |
1 |
1 |
1 |
|
|
1 |
| Iron |
12 |
20 |
26 |
|
|
23 |
| Copper |
57 |
76 |
139 |
|
|
103 |
| Lead |
6 |
6 |
10 |
|
|
9 |
| Tin |
2 |
0 |
1 |
|
|
1 |
| Molybdenum |
5 |
12 |
66 |
|
|
81 |
| Nickel |
1 |
1 |
1 |
|
|
1 |
| Manganese |
85 |
72 |
66 |
|
|
5 |
| Silver |
0 |
0 |
0 |
|
|
0 |
| Titanium |
0 |
0 |
0 |
|
|
0 |
| Potassium |
2 |
1 |
2 |
|
|
3 |
| Boron |
10 |
11 |
26 |
|
|
47 |
| Silicon |
14 |
18 |
26 |
|
|
17 |
| Sodium |
8 |
7 |
4 |
|
|
10 |
| Calcium |
2908 |
3193 |
2588 |
|
|
2393 |
| Magnesium |
9 |
12 |
14 |
|
|
64 |
| Phosphorus |
584 |
634 |
661 |
|
|
667 |
| Zinc |
684 |
733 |
841 |
|
|
844 |
| Barium |
1 |
1 |
0 |
|
|
0 |
| |
|
|
|
|
|
|
| TBN |
5.3 |
4.6 |
3.6 |
|
|
Min 1.0 |
| SUS Viscosity @ 210F |
59.7 |
58.8 |
59.8 |
|
|
Range ~58-65 |
| cSt Viscosity at 212F |
10.12 |
9.87 |
10.15 |
|
|
Range ~9.6-11.9 |
| Insolubles |
0.3% |
1.3% |
0.3% |
|
|
<0.6% |
| |
Actual Blackstone Report |
Actual Blackstone Report |
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 2,856 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.
Oil Change
3-8-08
After 3,300 miles of driving, again 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 again replaced with
AMSOIL Series
2000 0w30 and an AMSOIL EAO32
EA Oil Filter. Although this oil change interval was about 10%
longer (by mileage) than the original interval for the Mobil 1, the Oil Life
Monitor reading was 25% for both of these intervals.
Oil Change 1-11-09
After 3,006 miles of driving, again 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 Signature
Series 0w30 and an AMSOIL EAO32
EA Oil Filter.
Our evaluation of the used oil
analysis reports:
- As evidenced by the SUS and cSt
viscosity results, both oils 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 5.3
and 4.6 for the AMSOIL and 3.6 for the Mobil 1, both oils had life remaining
and 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
is exhibiting wear about 25-50% below the lab's universal averages for the AMSOIL.
- We were concerned with
the increase in insolubles from 0.3 to 1.3% on the first AMSOIL sample, but
insolubles dropped back down to 0.3% on the latest sample. Blackstone
attributed the increase in insolubles on the second sample to possible dirt
contamination of the sample. While that is possible, we believe that
the increase in insolubles was more likely attributed to sludge buildup that was
cleaned out by the AMSOIL's increased level of detergent (primarily the
increased levels of calcium present in the AMSOIL).
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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