I thought I would share some transmission reports that show how particle count and PQ helps find problems. These reports also show some of the limitations of elemental analysis and how big particles go undetected. The samples are from big transmissions but they are not that much different from a car or truck transmission. Example 1: Wear elements normal, Particle count high. Example 2: Iron slightly elevated but compartment unknown and no history. Example 3: Particle counts high, other elements following trend. Example 4: Iron slightly elevated, Particle count and PQ very high.