|
|
Prior to starting the field test, four
goals were set:
- The reduction of fuel
consumption through the superior lubricity and reduced viscometric
drag provided by AMSOIL 15W-40 Synthetic Heavy Duty Diesel and Marine
Motor Oil. Verification of this goal will be obtained by
com-paring previously documented fuel mileage reports using
petroleum oils with fuel mileage reports of the same vehicles now
using AMSOIL diesel oil.
- The extension of fluid drain
intervals due to the superior synthetic chemistry and additive
system of AMSOIL Synthetic Heavy Duty Diesel and Marine Motor Oil,
along with the additional efficiency pro-vided by the AMSOIL
Dual-Gard filtration system.
- The reduction of maintenance
costs due to the superior wear protection and extended drain
intervals provided by AMSOIL Synthetic Heavy Duty Diesel and Marine
Motor Oil and the AMSOIL Dual-Gard filtration system.
- Provide the above-mentioned
benefits without com-promising the mechanical integrity of the
equipment.
Baseline samples of the petroleum oil already in the
crankcase were obtained, tested and documented. Next, the oil was drained
and the engines flushed with AMSOIL Engine Flush. AMSOIL BMK-12 Filter
Mounts, two BE-110 By-pass Filtration elements and AMSOIL 15W-40 Synthetic
Heavy Duty Diesel and Marine Motor Oil were installed in each
vehicle.>
Oil samples from each bus are drawn and tested at
4000-mile intervals, the normal oil drain interval practiced by MR/DD when
using conventional lubricants. Data obtained from the oil samples serves
to determine the following:
- Fluid and vehicle
baselines
- The mechanical
condition of the vehicles
- Ability of the
equipment to continue functioning as a demonstration
vehicle
- Rate of internal
equipment wear
- Serviceability of
fluids and filters
Once drawn, each oil sample is reviewed in the areas of
elemental analysis (including wear metals, contaminates and additives),
physical properties (including viscosity, total acid number and total base
number) and contamination (including water, solids, glycol, oxidation,
fuel soot and fuel dilution). Oil condemnation limits vary due to
individual engine idiosyncrasies, operating conditions and time the fluid
has been in service.
|
| Bus
Number |
Miles on
AMSOIL without being changed |
# of
Petroleum oil changes (based on 4,000-mile interval) |
# of
AMSOIL oil changes (based on proposed 10,000-mile
interval) |
| 4 |
45,465 |
12 |
5 |
| 7 |
71,185 |
18 |
8 |
| 22 |
65,776 |
17 |
7 |
|
As of May 1, 2001, the buses had accumulated a total of 182,426
miles without oil changes, and several benefits associated with running
the AMSOIL products have been realized. First, both labor and vehicle
downtime have been reduced. While using the previous petroleum-based motor
oil, the Clark County Board of MR/DD was accustomed to changing oil at
4,000-mile intervals. They now plan to extend their intervals to 10,000
miles and beyond if supported by oil analysis results. The chart below
shows the comparison figures.
As for the aftermarket full flow oil filters, the original
intention was to change them every 6,000 to 10,000 miles, but after
careful review of oil analysis results, it was determined that because of
the efficiency of the AMSOIL Dual-Gard filtration system, 10,000- to
12,000-mile intervals were easily obtainable on the full-flow
filters.
For demonstration purposes, the BE-110 filter elements
remained unchanged for a 2-year period. However, after review, it was
deter-mined that under normal conditions it would be beneficial to change
them after a 40,000- to 50,000-mile interval.
Engine wear rates have decreased significantly since
changing to AMSOIL 15W-40 Synthetic Heavy Duty Diesel and Marine Motor
Oil. High temperature operating conditions have also been reduced. This
leads to enhanced engine protection, and ultimately, to longer engine
life. Because the engines have been operating more efficiently, three to
five percent gains in fuel economy have also been realized. The chart
below compares the levels of wear particles present in the previous
conventional oil with the levels present in the AMSOIL as of May 2001. The
condition of the AMSOIL at various testing intervals is documented
below.
CONCLUSIONS
Overall, this field demonstration was highly successful for
AMSOIL. The oil analysis data indicate that AMSOIL products deliver
uncompromising protection and performance. AMSOIL pro-vides longer
equipment life and reduced downtime, longer drain intervals, significant
decreases in wear rates and operating temperatures and dramatic
improvement in engine performance when compared to conventional petroleum
oils. |
|
|
Oil Analysis - Bus
#4 |
| |
Percent (%) of the
amount allowable
|
Parts Per Million (ppm) |
| Mileage |
Viscosity
(100°C) |
OXD |
NOX |
TBN |
Fe
(Iron) |
Pb
(Lead) |
Cu
(Copper) |
Al
(Aluminum) |
| 0 |
15.2 |
0.0 |
0.0 |
12.0 |
0 |
0 |
0 |
0 |
| 3883 |
11.6 |
7.8 |
4.3 |
12.7 |
17 |
1 |
2 |
7 |
| 5378 |
12.3 |
23.3 |
8.6 |
9.9 |
20 |
3 |
4 |
8 |
| 9700 |
14.0 |
4.4 |
7.1 |
13.0 |
40 |
2 |
4 |
8 |
| 22885 |
12.0 |
7.8 |
15.7 |
12.1 |
89 |
3 |
11 |
7 |
| 34059 |
12.4 |
21.1 |
15.7 |
12.4 |
134 |
5 |
30 |
12 |
| 45465 |
12.2 |
20.0 |
18.6 |
11.9 |
146 |
7 |
35 |
16 |
|
Oil Analysis - Bus
#7 |
| |
Percent (%) of the
amount allowable
|
Parts Per Million (ppm) |
| Mileage |
Viscosity
(100°C) |
OXD |
NOX |
TBN |
Fe
(Iron) |
Pb
(Lead) |
Cu
(Copper) |
Al
(Aluminum) |
| 0 |
15.2 |
0.0 |
0.0 |
12.0 |
0 |
0 |
0 |
0 |
| 3614 |
12.8 |
1.0 |
2.8 |
12.9 |
5 |
1 |
1 |
6 |
| 4126 |
13.6 |
3.3 |
4.3 |
9.8 |
9 |
3 |
3 |
7 |
| 10607 |
13.9 |
2.2 |
10.0 |
11.9 |
12 |
2 |
2 |
6 |
| 22428 |
12.9 |
10.0 |
10.0 |
12.2 |
30 |
5 |
27 |
8 |
| 31569 |
13.2 |
15.6 |
14.3 |
11.0 |
28 |
1 |
12 |
5 |
| 42647 |
13.6 |
25.6 |
18.6 |
10.6 |
61 |
12 |
38 |
9 |
| 58055 |
14.0 |
27.8 |
21.4 |
10.5 |
73 |
20 |
30 |
10 |
| 71185 |
14.2 |
17.8 |
20.0 |
10.7 |
53 |
16 |
14 |
6 |
|
Oil Analysis - Bus
#22 |
| |
Percent (%) of the
amount allowable
|
Parts Per Million (ppm) |
| Mileage |
Viscosity
(100°C) |
OXD |
NOX |
TBN |
Fe
(Iron) |
Pb
(Lead) |
Cu
(Copper) |
Al
(Aluminum) |
| 0 |
15.2 |
0.0 |
0.0 |
12.0 |
0 |
0 |
0 |
0 |
| 2732 |
13.4 |
1.1 |
2.8 |
7.8 |
7 |
2 |
12 |
6 |
| 3680 |
12.3 |
7.8 |
4.3 |
12.8 |
8 |
1 |
1 |
8 |
| 14329 |
12.5 |
5.6 |
10.0 |
12.9 |
14 |
4 |
3 |
6 |
| 20905 |
13.4 |
11.1 |
10.0 |
12.3 |
26 |
7 |
5 |
8 |
| 30671 |
12.8 |
6.7 |
11.4 |
9.1 |
28 |
6 |
6 |
7 |
| 41196 |
13.1 |
16.7 |
14.3 |
11.7 |
36 |
6 |
11 |
7 |
| 52983 |
13.7 |
21.1 |
15.7 |
11.2 |
44 |
7 |
19 |
7 |
| 65776 |
13.8 |
12.2 |
14.3 |
11.0 |
49 |
0 |
10 |
8 |
| Oil Analysis
Comparison: Petroleum Oil at 4,000 miles vs. AMSOIL Motor Oil at
45,465 miles to 71,185 miles |
| Vehicle |
Metal |
Type of
Oil |
Parts Per
Million |
Type of
Oil |
Parts Per
Million |
%
Reduction |
|
Bus #4 |
Iron
(Fe) |
Rotella |
170 |
AMSOIL |
146 |
-14% |
| Copper (Cu) |
34 |
35 |
+3% |
| Aluminum
(Al) |
68 |
16 |
-76% |
| Lead (Pb) |
26 |
7 |
-73% |
|
Average
|
- 44%
|
| Vehicle |
Metal |
Type of
Oil |
Parts Per
Million |
Type of
Oil |
Parts Per
Million |
%
Reduction |
|
Bus #7 |
Iron
(Fe) |
Rotella |
126 |
AMSOIL |
53 |
-58% |
| Copper (Cu) |
42 |
14 |
-67% |
| Aluminum
(Al) |
98 |
6 |
-94% |
| Lead (Pb) |
42 |
16 |
-62% |
|
Average
|
- 70%
|
| Vehicle |
Metal |
Type of
Oil |
Parts Per
Million |
Type of
Oil |
Parts Per
Million |
%
Reduction |
|
Bus #22 |
Iron
(Fe) |
Rotella |
136 |
AMSOIL |
49 |
-64% |
| Copper (Cu) |
234 |
10 |
-96% |
| Aluminum
(Al) |
117 |
8 |
-93% |
| Lead (Pb) |
39 |
0 |
-100% |
|
Average
|
- 88%
|
|
 |
Bob Kuhn AMSOIL Direct Jobber
Your Customer Number is 197783 |
|
| © 2007 Bob Kuhn
|
|
