The South West Research Institute was chosen in the late 1980's to run
a series of tests defined by the ASTM and the SAE, aimed at finally
having a strictly standardized yard-stick for the evaluation of engine
lubricants. For the last ten years, the SWRI has been running these
tests for the international oil industry and the automobile industry
day-in and day-out, and the results are accepted world-wide.
The results of the
individual tests are matched against the known performance of
"reference oils". The tests are defined very exactly, and the results
show any deviation from the reference oil values in change in
viscosity, hard and soft deposits, etc.
The test certificate confirms that the QMI test was run fully in
accordance with the test specifications, and the results were
registered with the US Chemical Manufacturers' Association, which
means that they are officially recognized.
The test simulates a
drive through the Nevada desert, towing a heavy load at a constant
70mph/110kmh. The test lasts 64 hours (equivalent to about 4,376
miles/7,000 km, so an oil change), at mid-day conditions. Thus the oil
temperature is maintained at 149 degrees C., the coolant at 115
degrees C. The reference oil chosen for the QMI test was taken because
it was known to just about hold out for the 64 hours in its "pure"
form. Thus, any undesirable effects from adding the QMI to it would
have meant that the test would not have run the full time. (This
happens with poor quality oils regularly.)
The values produced by
the QMI test showed no negative features, thus showing that QMI plus
oil is NO MORE DANGEROUS FOR THE ENGINE THAN OIL ALONE. But, as a
bonus, the test showed that the wear in the drive train was 88% lower
than normal. The next best wear reduction still produced 7.8 microns
wear, compared with QMI's 4.0 microns.