From:	Jeff Clark
Sent:	Friday, January 31, 2003 3:58 PM
To:	Andrew Ritchie (E-mail); Bob Campbell (E-mail); Charlie Passut (E-mail) (E-mail); Clark, Jeff; Greg Shank (E-mail); Jim Gutzwiller (E-mail); Jim Matasic (E-mail); Jim Moritz (E-mail); John Haegelin (E-mail); Ken Goshorn (E-mail); Mark Cooper (E-mail); Mark Rees (E-mail); Michael Minotti (E-mail); Pat Fetterman (E-mail); Riccardo Conti (E-mail); Ron Buck (E-mail); Scott Richards (E-mail); Steve Gearhart (E-mail); Steve Kennedy (E-mail); Tom Franklin (E-mail); Wim Van Dam (E-mail)
Cc:	Frank Farber; John Zalar; Winsome Ho
Subject:	Minutes of the January 31, 2003 Mack T-11 Task Force Teleconference
Here are the unapproved minutes of the Mack T-11 Task Force Teleconference of January 31, 2003.
The meeting began approximately 2:10 pm Eastern time.

Participants: Pat Fetterman, Andy Ritchie, Ron Buck, Jim Matasic, Mark Rees, Jeff Clark, Scott Richards, Steve Gearhart, Jim Moritz, Tom Franklin, John Haegelin, Steve Kennedy, Riccardo Conti, Bob Campbell, Charlie Passut, Jim Gutzwiller, Greg Shank, Ken Goshorn

Jeff Clark of the TMC volunteered to act as Task Force Secretary.
After a short discussion, the test name was designated as the Mack T-11.

The time, date and place of the next meeting was set:

     Mack T-11 Task Force Meeting
     Thursday February 13, 2003
     9:00 am to 2:00 pm.
     Mack Trucks, Hagerstown, MD

     ACTION ITEM: Task Force members contact Greg Shank with your intent to attend.

This test is intended to be a viscosity increase test designed to augment CI-4 oils. It will end up in a Mack spec and is intended to be carried forward for PC-10. Greg has shared data with EMA, which has agreed to look at viscosity increase issues. Greg stressed that this is an industry issue, not just a Mack issue. Greg has also informed API.

Test Procedure
Soot Targets - Steve Kennedy proposed soot targets of 2.50 - 3.00 % at 100 hours, 5.25 - 5.75 % at 200 hours, and 8.00 - 8.50 % at 300 hours. This raised the issue of reporting soot to 2 decimals. Steve and Jeff Clark indicated they believed this was both practical and possible. ACTION ITEM - Jeff to bring RR soot data for discussion at Feb. meeting.

Fuel Rate
Scott Richards indicated that he has seen a drop off in fuel flow during the test (at wide open throttle). Jim Moritz indicated that while he has not seen fuel rate drop, he has seen the throttle open up to compensate for a fuel rate drop late in the test. The fuel rate set point will need to be discussed in Feb. and set so the labs can maintain it throughout the test. ACTION ITEM - Test labs are to examine fuel rate data and bring to Feb. meeting.

Fuel
It was agreed that the test would use PC-9 Diesel reference fuel.

Timing Adjustments
It was agreed that timing changes will be allowed at any time during the test. Greg asked the labs to bring timing data to the meeting so Mack could see the ranges of timing.  The question was raised as to whether or not all three soot windows are mandatory or necessary. It was agreed that this would be discussed in Feb. The question of real time soot measurements was brought up. Greg stated that he didn't think it was practical since the devices cannot be used beyond 1% soot. ACTION ITEM - Labs are to bring timing data to meeting.

Flush and Run
It was agreed that the T-11 would be a flush and run test, using a more durable top ring (p/n 349GC3113) to hopefully extend the life of an engine build. Flush protocols are needed and will be discussed in Feb. ACTION ITEMS - Labs are to be ready to discuss flush practices/experiences.

Oil Charge and pick-up:
The total oil charge (engine and aux. system) is 8 gallons, with one oil add: 2.5 lbs at 100 hours. No forced oil drain. The auxiliary oil system pick-up is located 7" below the top of the pan (this is 2" below the T-10 location).

Reference Oils
It was agreed that two reference oils are desirable. As a first step, 820-2 will be used and Greg will search for a second oil.

Oil Sample Intervals
Steve suggested more frequent oil sample intervals and ExxonMobil will be doing this on an upcoming test. This will be discussed in Feb.

The meeting concluded at 3:05 pm Eastern time.

Jeff Clark
Staff Engineer
ASTM Test Monitoring Center
6555 Penn Ave.
Pittsburgh, PA 15206
Ph: 412-365-1032
Fx: 412-365-1047
Email: jac@astmtmc.cmu.edu