Amsoil synthetic lubricants proven very cost effective in fleet school bus testing.


In order to demonstrate the effectiveness of
AMSOIL 15W-40 Synthetic Heavy Duty Diesel
and Marine Motor Oil and the
AMSOIL Dual-
Gard filtration system in reducing operating
expenses,
AMSOIL and Direct Dealer Bill Andes
began an ongoing field test in October 1998
with the bus fleet of the Clark County Board of
Mental Retardation & Developmental Disabilities
(MR/DD) in Springfield, Ohio.


Participating in the field test are three 1997
International 3800 school buses, two equipped
with International 466 diesel engines and one
with an International 466E diesel engine. Each
had previously been running a conventional
petroleum-based oil.


Prior to starting the field test, four goals were set:

1. 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.
2. 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.
3. 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.
4. 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:

1. Fluid and vehicle baselines
2. The mechanical condition of the vehicles
3. Ability of the equipment to continue functioning as a demonstration vehicle
4. Rate of internal equipment wear
5. 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              # of petroleum oil            # of Amsoil oil changes
being changed                        changes ( based on          { based on proposed           
4,000 mile interval )          10,000 mile Interval            

4                               45,465                                          12                                           5

7                               71,185                                          18                                           8

22                              65,776                                          17                                           7


Observations
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 A
MSOIL 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.

Conclusion
Overall, this field demonstration was highly successful for AMSOIL. The oil analysis data indicate that
AMSOIL products deliver uncompromising protection and performance. AMSOIL provides 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        OXD        NOX        TBN             Fe                Pb                Cu                Al
100-C                                                           Iron              Lead            Copper       Aluminum

0                  15.2             0.0          0.0         12.0               0                   0                    0                  0

3883             11.6             7.8          4.3          12.7             1.7                  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        OXD        NOX         TBN                Fe             Pb              Cu                   
Al        
100-C                                                                Iron          Lead          Copper          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        OXD        NOX          TBN                Fe              Pb             Cu             Al
100-C                                                                Iron           Lead         Copper      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)                                                4                                                          2

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)                                           17                                                     8                     - 93%

Lead (Pb)                                                  39                                                     0                     
-100           
Retail and commercial businesses can enroll for FREE, as accounts for factory
direct wholesale pricing with no obligations or minimum purchases.
Save about 20% to 25% off our
regular retail when you join the
Amsoil Synthetic Lubricants
Preferred Customer Discount Program
Become an individual
Amsoil Synthetic Lubricants Dealer
and start your very own business. No minimums,
no stocking, no quotas, no hassles.
Amsoil 4 less from MMB
Local  586-268-1295
Amsoil Warranty
41
------         Synthetic Lubricants - Proven #1 in Lubrication, Filtration, Usage and Testing
Proven #1






ATV

Racing

Boating

Motorcycle

Snowmobile

Personal
Watercraft

Family
Fleet
Proven #1

Since 1972 !





Automotive

Trucking

Farming

Industrial

Antiques

Commercial
Fleets

Municipal
Fleets
There is only one #1 -   MSOIL


Proven time and again in actual S.A.E. Testing

We are the best in every single category !!! The difference is we can prove it.

High performance products! You will actually notice a difference when you use them.
44
A Winning Combination for over 44 Years
Thirteen distribution centers throughout North America