ABOUT THIS TEST

The test vehicle is a 1993 Nissan 240SX with an original KA24DE engine. The maintenance history of this vehicle is unknown so I can only guess how the deposits got there.

This test is intended to validate the claims put forth by the inventor of Auto-Rx. I will be following the recommended procedure which consists of two treatments in the following order as explained here:

• Installing a fresh filter and oil, and performing a 1500 mile cleaning cycle with one bottle of Auto-Rx. (done)
• Changing the oil and filter and performing a 2000 mile rinse cycle using oil only. (done)
• Changing the oil and filter and performing another 1500 mile cleaning cycle with one bottle of Auto-Rx.
  (done)
• Changing the oil and filter and performing a 2000 - 3000 mile rinse cycle using oil only. (Finished as of 2/19/05)

  
  TOOLS:
  -The compression is measured using a MATCO CT65-A (the calibration of this gauge was verified before starting the test)
  -The oil pressure is measured with a SNAP-ON MT37A
  -The coolant temperature is measured with a MAC AC300A
  -The idle speed is measured with a BLUE POINT MT586 A, with inductive pickup.

  (I just noticed all these tools end with an "A". What's up with that?)

  The compression is tested with the engine at operating temperature, all of the spark plugs removed, and the throttle held completely open.

The oil pressure, idle speed, and coolant temperature are measured at idle after the engine has been run at least 30 minutes.