How the Oil Analysis Program (OAP) Works
OAP is a 4-step process:
(1) Purchasing
(2) Sampling
(3) Analysis
(4) Diagnostic Reporting
Step 1 - Registration
1. Begin the OAP process by purchasing a sampling kit from AMSOIL. You may
purchase kits singly or in quantities of 50 or 100, with lower per-kit prices
for larger orders. A oil suction pump is also available.
2. The sample kit includes a sample bottle, sample information form
and mailer.
Step 2 - Sampling
1. Read the Oil Sampling Procedures on the back of the
sample information form.
2. Fill out the Sample Information Form completely.
3. Take a sample (minimum: 2 to 3 oz).
4. Close and seal sample container tightly.
5. Send the filled sample container and the Sample Information Form to OAI
in the supplied mailer.
Step 3 - Analysis
Upon receipt of your sample at the Oil Analyzers Inc. laboratory, all
requisite testing will be performed. All analyses include determination of
viscosity, fuel dilution (if applicable), water, dirt content, fuel soot
contamination (if applicable), plus spectrochemical analysis for 20 elements to
determine component wear, airborne dirt, anti-freeze contamination (if
applicable), and oil additive concentrations.
The analyses also includes a neutralization value determination - Total Base
Number (TBN) primarily for gasoline and diesel motor oils or Total Acid Number
(TAN) non-crankcase lubricants. Oxidation values and nitration value (if
applicable) are also determined
Step 4 - Reporting
1. OAI will mail your analysis report to you the day your sample is
analyzed. For even faster results, request that your results be faxed to you,
or go online and register to get your results online.
2. If your analysis uncovers a critical problem, such as pending equipment
failure, a technician will telephone you directly to advise you of the
situation and recommend a course of corrective action.
The Sampling Process
Trend Analysis
A single sampling analysis is useful in providing information when critical
failure conditions exist. However, trend analysis is a better tool for
estimating the useful life or overall condition of your engine or equipment.
Trend analysis samples are taken and analyzed at regularly scheduled intervals.
Comparing the most recent analysis to previous reports on a given machine shows
the development of trends. Monitoring these trends enables early detection of
internal abnormalities. Tested values falling within acceptable limits may show
a pattern of subtle variance, which could signal a developing problem.
Machines of the same type will accumulate contaminants and wear at different
rates. Performing trend analysis on each machine is the most effective method of
giving you an internal look at your equipment and enabling you to deal with
developing problems before they become catastrophic situations.
Sampling Frequency
The frequency of sample analysis from your equipment depends on the machine
type, machine application and condition, operating environment and other
variables. For example, many machines that operate in harsh environments, such
as heavy equipment in mining or construction, require short oil sampling
intervals - every 100 to 300 operating hours. However, certain power
transmission systems, such as gearboxes and hydraulic systems used inside
manufacturing and production facilities, require no more than quarterly sampling
intervals. The following table lists generic sampling frequencies for common
equipment types, and is provided as a guideline only. Additional information is
available from Oil Analyzers Inc., your lubricant supplier, and the equipment
manufacturer.
Collecting a clean and representative oil sample is critical to the oil
analysis process. Put simply, an oil analysis is only as good as the sample
taken. The accuracy and reliability of the data produced by an analysis hinges
on receiving a representative sample from the equipment to be tested. To assure
that the sample extracted is representative of the system, always follow proper
sampling procedures.
|
EQUIPMENT TYPE |
TEST
PACKAGE |
RECOMMENDED SAMPLING FREQUENCY |
|
MOTOR
VEHICLES |
|
|
| Diesel engines |
Basic with TBN |
100 - 500 hours, 3500 -
20,000 miles |
| Gasoline engines |
Basic with TBN |
50 - 200 hours, 2000 -
7500 miles |
| Transmissions |
Basic with TAN |
30,000 - 100,000 miles |
| Gears, differentials,
final drives |
Basic with TAN |
30,000 - 100,000 miles |
|
INDUSTRIAL |
|
Normal Use Intermittent Use |
| Hydraulics |
Basic with TAN |
750 hours or monthly
Quarterly |
| Gas turbines |
Basic with TAN |
750 hours or monthly
Quarterly |
| Steam turbines |
Basic with TAN |
1500 hours or bimonthly
Quarterly |
| Air or gas compressors |
Basic with TAN |
750 hours or monthly
Quarterly |
| Refrigeration compressors |
Basic with TAN |
Quarterly |
| Natural gas engines |
Basic with TAN |
750 hours or
monthly |
| Gears and bearings
(industrial) |
Basic with TAN |
1500 hours or bimonthly
Quarterly |
SAMPLING METHODS
1. The component sampled should be brought to operating temperature prior to
sampling. This will assure that the insoluble and semi-soluble material is
suspended evenly throughout the system. Samples taken from components that have
been inactive for long periods are not representative.
2. Sample should always be taken in the same manner and from the same point.
3. Do not sample a component directly after an oil change or after a large
amount of makeup oil has been added.
4. Use a clean, dry, unbreakable container. Never reuse containers or
sampling tubing.
Collect your sample using one of the three following methods:
1. Oil Suction Pump Method
(see
instructions for use)
Request a oil suction pump when ordering your sample kit. The pump will come
with complete instructions and will enable you to draw a sample quickly and
easily. Seal the bottle tightly.
 |
G-1206 Oil Suction Pump with 10-foot hose
|
2. Sample Valve/Petcock Method
The valve should be wiped clean and any stagnant oil should be drained
prior to catching a sample run. Seal the bottle tightly. Wipe bottle clean.
3. Oil Drain Method
Clean the area around the drain plug thoroughly to avoid sample
contamination. Allow oil to drain for three to five seconds prior to catching
a sample. Place a clean, dry sample bottle in the oil stream and fill to
within 1/2 inch of the top. Seal bottle tightly. Wipe bottle clean. (This is a
last resort)
SAMPLING TIPS
- For best results, oil samples should be taken immediately after equipment
shutdown, while the equipment is still at operating temperature. Never sample
a cold engine and always make sure the oil has been well circulated before
taking a sample. Dirt, water and other debris tend to settle to the bottom of
the reservoir while light fuels tend to float. This separation will compromise
your analysis.
- Good locations for sampling include an oil gallery, the engine crankcase,
the drain plug or dipstick tube and the equipment reservoir or sump.
- When taking oil from industrial machinery through a bottom drain, be
careful to draw oil until your sample has a uniform, representative
appearance.
- Use samples from the drain pan or oil filter only as a last resort. For a
failed engine that has had the oil drained, a drain pan or oil filter sample
may help detect the cause of the failure.
- Avoid prolonged skin contact with used oil. Wash exposed skin with soap
and water after exposure.
CAUTION
Engine crankcase oil temperatures can exceed 200°F. To
avoid personal injury, use protective equipment such as gloves, safety glasses
and protective clothing.
SPECIAL TESTS AVAILABLE
| Tests |
Lube Tested |
Method |
Qty Req'd |
| Cloud point |
Diesel Fuel |
ASTM D 2500 |
2 oz |
| Cold Cranking Simulator |
Engine Oil |
ASTM D 5293 |
1 oz |
| Color Test |
Any |
ASTM D 1500 |
2 oz |
| Cone Penetration of
Lubricating Grease |
Grease |
ASTM D 217 |
1 lb |
| Corrosion, Copper Strip |
Any |
ASTM D 130 |
2 oz |
| Density |
Any |
ASTM D 1298 |
1 qt |
| Falex Pin & V-Block Test; per
run |
Gear Lube |
ASTM D 3233 |
4 oz |
| Flash and Fire Point - (COC)
Cleveland Open Cup |
Any |
ASTM D 92 |
3 oz |
| Flash Point - (PMCC) Pensky-Marten
Closed Cup |
Any |
ASTM D 93 |
3 oz |
| Foam Stability Sequences I,
II, III |
Any |
ASTM D 892 |
1 qt |
| *Fuel Dilution, % |
Engine Oil |
FTIR |
1 oz |
| *Fuel Soot, % |
Engine Oil |
FTIR |
1 oz |
| Four-Ball Wear Characteristics |
Any |
ASTM D 4172 |
4 oz |
| *FTIR Infrared Analysis |
Any |
FTIR - Scan |
1 oz |
| Glycol Base Anti-Freeze
Determination in Oils |
Engine Oil |
ASTM D 2982 |
1 oz |
| *Metals Analysis |
Any |
ICP |
1 oz |
| **Neutralization Number -
Total Acid Number |
Any |
ASTM D 664 |
1 oz |
| **Neutralization Number -
Total Base Number |
Any |
ASTM D 2896 |
1 oz |
| *Nitration, % |
Engine Oil |
FTIR |
1 oz |
| NOACK Volatility, % Weight
Loss |
Engine Oil |
DIN 51581 |
4 oz |
| *Oxidation, % |
Any |
FTIR |
1 oz |
| pH Range |
Any |
|
1 oz |
| Pour Point |
Any |
ASTM D 97 |
4 oz |
| Refractive Index |
Any |
|
1 oz |
| *Viscosity, measured in cSt,
specify temperature |
Any |
ASTM D 445 |
2 oz |
| Viscosity Index (Includes
100°C & 40°C Viscosities) |
Any |
ASTM D 2270 |
4 oz |
| Water by Distillation |
Any |
ASTM D 95 |
2 oz |
| Water by Mobil Crackle Test |
Any |
MOBIL |
2 oz |
| Water by Karl Fisher |
Any |
ASTM D 1123 |
1 oz |
| Water Separability - Petroleum
Oils and Syn. Fluids |
Any |
ASTM D 1401 |
4 oz |
| *Also included in
standard test package |
| **TAN or TBN
included in standard test package |
| Other special
tests available upon request |
| |
|