Fleets * David J. Whetter has been promoted to president and CEO of Transworld Products Inc.
* Montgomery Tank Lines has announced the appointment of Michael Grimm to exec. vice president.
* Penske Truck Leasing has named Mark Skoda exec. vice president of Penske Logistics.
* Gloria J. Jeff has been named acting administrator of the Federal Highway Administration.
* Kevin M. Hartman has been named vice president-operations of Con-Way Central Express.
Suppliers * Detroit Diesel Corp. has appointed Ludvik F. Koci vice chairman and Charles G. McClure president.
* Charles W. Kleinhagen has been named division manager of the Haldex Brake & Traction Div.
* David K. Barthmuss has been appointed manager of sales, marketing and regional product communications at the Chevrolet Motor Div.
* HighwayMaster Communications Inc. has named Philip McCormick exec. vice president and chief financial officer.
* DuPont Automotive has appointed James R. Hobstetter automotive market account manager for Suva 134a refrigerant.
* Transportation International Pool has named Dick Metzler senior vice president of worldwide marketing.
* Continental General Tire has restructured it sales and marketing organization. Several promotions have been announced: Thomas B. Roydhouse to director, replacement sales and marketing; Jeffrey J. Jankowski to manager of the southern region; Hugo Ybarra to manager of Commercial's western region; James R. Mayfield to vice president of the company's original equipment sales channel; and Cliff Armstrong to manager of marketing and sales operations.
* William Tracewell joined Amalie Motor Oil as southwestern district manager.
* XATA Corp. has promoted Peter W. Allen to national accounts manager and Joel Jorgenson to director of sales.
* Western Star Trucks Holdings Ltd. has named chairman and chief executive Terry Peabody to the added post of president.
* Pressure Systems International has announced the election of Tim Musgrave to president and CEO.
* Thieman Tailgates has appointed Michael Stanley as South Central regional sales representative.
