GM HT-6 (Delphi) Compressor Life Cycle Test
(3 Yr / 36,000 Mile)

Two different NEW HT-6 compressors were subjected to an accelerated life cycle test on a calorimeter at Zexel Valeo to determine the influence if ICE 32 on the A/C system. One compressor was tested with factory PAG 150 (Delco 15-118) lubricant only and the other used the factory PAG 150 (Delco 15-118) lubricant with an ICE 32 treatment.

A baseline performance test was conducted under three load conditions, Low RPM (Idle), Simulated city traffic (30 MPH), Simulated highway driving (65 MPH), was run before the compressors were subjected to the 120 hour Life Cycle test. Unfortunately, the compressor not treated with ICE 32 had a clutch failure at 115 hours into the test sequence. The compressor did not seize, but the increased internal drag or resistance caused slippage of the clutch drive plate, loss of the grease from the clutch bearing, resulting in clutch failure.

The treated compressor did not fail and completed the full life cycle test and performance retest.

Analysis of oil drained from each compressor after life cycle testing

ELEMENT

HT-6 w/ FACTORY LUBRICANT

HT-6 w/ FACTORY LUBRICANT AND ICE32 TREATMENT

DIFFERENCES

Fe

Iron

13.2 ppm

3.1 ppm

77% Less

Cu

Copper

7.9 ppm

< 1.0 ppm

88% Less

Al

Aluminum

7.0 ppm

< 1.0 ppm

86% Less

Sn

Tin

12.7 ppm

2.8 ppm

78% Less

Si

Silicon

5.8 ppm

3.8 ppm

35% Less

Na

Sodium

1.5 ppm

3.4 ppm

56% More

P

Phosphorus

190 ppm

252.2 ppm

25% More

Zn

Zinc

88.1 ppm

63.8 ppm

28% Less

Mg

Magnesium

< 1.0 ppm

1.6 ppm

83% More

K

Potassium

2.3 ppm

5.7 ppm

60% More

 

 

 

 

 

 

 

All other elements tested (12) at less than 1 ppm with factory PAG lubricant and ICE 32.

Other GM HT-6 Tests
 * GM HT-6 (Delphi) Compressor Life Cycle Test 
    (3 Yr / 36,000 Mile)
 * Delphi HT-6 Compressor Clutch Analysis
 * Delphi HT-6 Compressor Wear Comparisons