1. LTMS TF SS May 11, 2010

2.  235 data entries ◦ 160 chartable tests  Five test laboratories (A, B, D, F, G) ◦ 35 test stands  2 stands only had one ref test  These stands were not included in this analysis  Reference oil timeframe: 1/18/09 – 4/7/10

3. 3  Stand Based Severity Adjustment System  “Old system” used continuous SA  Primary Parameters ◦ FEI1, % ◦ FEI2, %  Set = 0.3 (same as the ‘old’ system)  Assumed pass limit based on xW-20 viscosity grades ◦ FEI1=1.4, FEI2=1.2 ◦ Set Shewhart limits to ±2.0