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GM V-5 Durability Testing
Two systems were simultaneously run on identical durability cycles. One with the Delco 15-118 lubricant and the other with the Delco 15-118 lubricant and 1.5 oz of ICE 32. Both systems had all NEW components: Compressor, Condenser, Accumulator, Orifice Tube, and Evaporator.
Purpose of testing
To determine differences in wear patterns on internal moving components of compressors. Compare system / component wear after 400 hour constant run test.
Durability test conditions
• Compressor RPM - 750 constant
• Head Pressure - sustained 435 psi
• 400 Hour Continuous Run
• Evaporator Load - 40% humidity @ 250 cfm
• Test Facility - Jacobs Sverdrup, Amherst, NY, USA
Oil drained from each compressor (non-treated and treated system) was analyzed at Southwest Research Institute and the following variations were detected:
|
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ELEMENT
|
NON-TREATED
SYSTEM
|
ICE
32 TREATED SYSTEM
|
DIFFERENCES
|
|
Fe
|
Iron
|
10ppm
|
2ppm
|
80%
Less
|
|
Cu
|
Copper
|
3ppm
|
2ppm
|
33%
Less
|
|
Si
|
Silicon
|
1ppm
|
2ppm
|
50%
More
|
|
Na
|
Sodium
|
5ppm
|
5ppm
|
No
Change
|
|
Zn
|
Zinc
|
34ppm
|
8ppm
|
76%
Less
|
|
K
|
Potassium
|
5ppm
|
5ppm
|
No
Change
|
All other
elements tested (17) at less than 1ppm treated and untreated.
Other
GM V-5 Tests
* GM V-5 Performance Test
* GM
V-5 Durability Testing
* Orifice
Tube Contamination
* GM
V-5 Shaft Seal Surface Analysis
* GM
Shaft Bearing S E M / E D S
* GM
V-5 Thrust Bearing
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