Test Monitoring Center Report to the Mack Test Surveillance Panel January 23, 2007 San Antonio, TX

Reference Oil Testing Summary T-8 Test Activity Very Low 1 calibrated lab 2 calibrated stands Issue: Lab(s) now without reference oil!!

Options (assuming the T-8 must live) T-8 Reference Oil Issue Options (assuming the T-8 must live) Use T-11 as a replacement slow to develop and not much energy so far Voluntarily re-distribute remaining 1004-3 has already been requested success far from certain and can’t be forced Get a different reference oil 1005-2 most likely the best fit

TMC 1005-2 as T-8 Reference Oil Positives Five T-8 test results on 1005 Plenty 1005-2 available Labs would be able to run immediately

TMC 1005-2 as T-8 Reference Oil Negatives Data is old (9 years) Data is on a previous blend Data is incomplete Relative Viscosity (100% Shear) data doesn’t exist Causes problems determining SAs (but not calibration status)

TMC 1005-2 as T-8 Reference Oil Possibilities Targets VI38 (mean & stdev) = 5.85 & 0.72 RV48 (mean & stdev) = 2.09 & 0.15 RV2 - none Control Charts Suggest temporary expansion of Shewhart K to 2.00 until five tests Either suspend or freeze current RV2 SAs

Reference Oil Testing Summary T-11 Test Activity Moderate 5 calibrated labs 6 calibrated stands Oil 820-3 has been introduced More on this in a few moments

T-11 Correction Factors – Soot and MRV T-11 Top Ring Change in May ’05 Total of 34 tests 30 tests on 820-2 4 tests on 820-3 Current CFs were set at 20 tests on new hardware (oil 820-2)

T-11 Correction Factors

T-11 Correction Factors Do we update (and possibly freeze) the correction factors for Soot at 12 cSt and MRV based on 30 tests?

T-11 Reference Oil Update TMC 820-3 has been introduced 4 tests 3 passes, 1 fail (very mild on Soot at 12) TMC will update as data comes in No new tests expected until April

T-11 Reference Oil Update

Reference Oil Testing Summary T-12 Test Activity Low 6 calibrated labs 9 calibrated stands Test targets nearing update (n = 19) Sure to require significant discussion

Mack SP Items for Consideration T-8 & T-11 Fuel Sulfur Measurements QC measurements (not fuel spec sheet) D 129 “or equivalent” (Sept. ’05) not specific enough, undefined D 129, D2622, D 4294, or D 5453 under consideration? if no action, then D 129 only

Mack SP Items for Consideration T-12 Piston Deposits Currently mandatory originally asked for in case C13 was a no-go Mack SP voted to remove (3-1-9) Change generates an Information Letter Negative must be addressed before change is effective

Mack SP Items for Consideration T-11 New Stand Definition (Sect. 11.4) Time limit Currently shown as one year from cal test Conflicts with: Meeting minutes (Feb. ’05) and LTMS doc Suspect clerical error Suggest change to “one year from cal expiration”

Mack SP Items for Consideration T-11 Soot Calculations Soot at 4, 12, and 15 cSt Linear Interpolation NOT specified in Section 11.6

Mack SP Items for Consideration T-11 Soot Calculations Current 11.6 Test Results—The test results are Soot Content at 4 cSt Viscosity Increase (%), Soot Content at 12 cSt Viscosity Increase (%), Soot Content at 15 cSt Viscosity Increase (%), and MRV Viscosity (cP)

Mack SP Items for Consideration T-11 Soot Calculations Suggested Fix 11.6 Test Results—The test results are Soot Content at 4 cSt Viscosity Increase (%), Soot Content at 12 cSt Viscosity Increase (%), Soot Content at 15 cSt Viscosity Increase (%), and MRV Viscosity (cP). 11.6.1 Use linear interpolation for calculating soot contents (at a given viscosity increase), using new oil 90-pass DIN shear viscosity result as the minimum viscosity (sections 10.1.1 and 10.1.5) Renumber following sections as appropriate (11.6.1 to 11.6.2).

T-12 to T-10 Merit Calculation Action Item Update T-12 to T-10 Merit Calculation JAC asked to investigate where this should live Answer: T-12 test method BUT!!! not until ballot clears Sub. B Reports forms already updated