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Mack T-12 Pre-Matrix Data Analyses Version 4 March 27, 2005

Mack T-12 Pre-Matrix Data Analyses Version 4 March 27, 2005. Jim Rutherford (510) 242-3410 jaru@chevrontexaco.com. Summary. These analyses used six tests in the on oil 820-2 plus ten tests on nine low SAPS oils.

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Mack T-12 Pre-Matrix Data Analyses Version 4 March 27, 2005

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  1. Mack T-12Pre-Matrix Data AnalysesVersion 4March 27, 2005 Jim Rutherford (510) 242-3410 jaru@chevrontexaco.com

  2. Summary • These analyses used six tests in the on oil 820-2 plus ten tests on nine low SAPS oils. • It is surprising to be able to find significant differences with so few reference tests and only one test on most of the other oils. • The charts show each test result plus the mean for 820-2 and upper and lower limits for determining whether individual test results on the low SAPS oils are significantly (p=0.05) different from 820-2. {For OILK, the average of two results is shown.} • Outlier screening was done with no profiles and not for all tests. Pb was corrected for the UBWL outlier using the T-10 method. • Significant differences were seen for • Delta Pb 0 to 300 {more differences are seen when corrected for UBWL outlier, and even more when the Lab G test was removed}; • Top Ring Weight Loss (more with Lab A Near Outlier Removed); • Oil Consumption; • Delta Pb 250 to 300; and • Second Ring Weight Loss. Mack T-12 Pre-Matrix 4

  3. Pre-matrix Tests with 820-2 Mack T-12 Pre-Matrix 4

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