QuickServe_Online_Fluids_for_Cummins®_Products_Service_Manual_-_Engine_Oil_Analysis.pdf
PDF 59 KB Posted
- Attached to
- Oil and Fluid Analysis
- Solicitation number
- 090-2026
- Issued by
- Hamilton County, Ohio
About this file
This is a technical service manual document from Cummins Inc. related to the Southwest Ohio Regional Transit Authority's (SORTA) procurement of oil and fluid analysis services for its bus fleet in Ohio. The document provides guidance on engine oil analysis procedures and parameters that should be monitored to maintain engine health and identify potential malfunctions. SORTA is seeking a five-year contract for routine laboratory analysis of engine oil and transmission fluid from its transit bus fleet. The analysis is intended to monitor oil contaminant levels and identify system issues such as faulty air filtration, coolant leaks, fuel dilution, or component wear.
The manual specifies that analysis should be conducted by laboratories meeting ISO 17025 certification standards and outlines detailed test parameters across three categories: oil health (including Total Base Number, Total Acid Number, oxidation, nitration, and viscosity), contamination (fuel dilution, soot content, and elemental analysis including sodium, potassium, silicon, and aluminum), and wear metals (iron, lead, copper, tin, and chromium). All testing methods must comply with American Society of Testing and Materials (ASTM) standards specified in the manual, with particular attention to ASTM D445 for viscosity, ASTM D5185 for elemental analysis, and FTIR-based methods for oxidation and nitration testing. This technical framework establishes the baseline requirements for vendors responding to SORTA's contract opportunity.
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4/8/2021 QuickServe Online | (5411406) Fluids for Cummins® Products Service Manual https://quickserve.cummins.com/qs3/portal/service/manual/en/5411406/ 1/2
(/qs3/pubsys2/xml/en/manual/5411406/5411406-titlepage.html)
General Information
Test Parameters
Cummins Inc. recommends conducting oil analysis to assist with maintaining the health and function of the engine.
Oil analysis is conducted for the following reasons.
To monitor engine oil contaminant levels To identify system malfunctions such as faulty air filtration, coolant leaks, fuel dilution, or increase in component wear.
Although oil analysis is beneficial in identifying early signs of wear and tear, there are some limitations to what oil analysis can detect:
Inability to detect large particles.
Inability to identify rapidly developing malfunctions. To identify a potential problem, a malfunction would have had to be in progress at the time the last oil sample was taken. Some malfunctions progress so quickly that they will not be identified in oil analysis.
An international standard, ISO 17025, for testing and calibration laboratories, exists to identify labs that produce valid results consistently, per accreditation body standards. Utilize an analysis lab that meets ISO 17025 certification for the particular oil analysis tests being conducted.
Proper analysis of oil samples is important for maintaining successful engine life and operation. Wear metals, oil contaminants, and oil properties that provide the most reliable indicators to detect a potential problem can be found in Table 1.
Table 1: Oil Analysis Parameters Parameter, Unit Recommended Test Method
Oil Health Total Base Number (TBN), mg
KOH/G
American Society of Testing and Materials (ASTM) D4739
Total Acid Number (TAN), mg KOH/g
ASTM D664
https://quickserve.cummins.com/qs3/pubsys2/xml/en/manual/5411406/5411406-titlepage.html
4/8/2021 QuickServe Online | (5411406) Fluids for Cummins® Products Service Manual https://quickserve.cummins.com/qs3/portal/service/manual/en/5411406/ 2/2
Last Modified: 30-Oct-2018
Table 1: Oil Analysis Parameters Parameter, Unit Recommended Test Method
Oxidation, abs/cm
ASTM E2412*
or
ASTM D7414*
Nitration, abs/cm ASTM E2412 Viscosity @ 100°C [212°F], cSt ASTM D445
Contamination
Fuel Dilution, mass percent fuel in oil
ASTM D7593
Percent Soot, mass percent soot in oil
ASTM E1131**
Sodium - Na, ppm D5185 Potassium - K, ppm D5185 Silicon - Si, ppm D5185 Aluminum - Al, ppm D5185
Wear Metals
Iron - Fe, ppm D5185 Lead - Pb, ppm D5185 Copper - Cu, ppm D5185 Aluminum - Al, ppm D5185 Tin - Sn, ppm D5185 Chromium - Cr, ppm D5185
* Fourier transform infrared spectroscopy (FTIR) data can use either ASTM method but should report whether trending or subtraction methods were used.
** Labs may report a value from E2412 (FTIR) calibrated to E1131.
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