vii L.S. Starrett Co. Lufkin Instrument Div.— Cooper LuK GmbH &Co. Lyons, Marquette Corp. Mac Tools, Inc. Magnaflux Corp. Maremont Corp. Marquette Maserati Automobiles, Inc. Mazda McCord Replacement Products Div. Mercedes-Benz Miller Engineering MINI Minnesota Curriculum Services Center Mitchell Manuals Mitsubishi Mobil Oil Corp. Moog Automotive, Inc. Motorola Motor Vehicle Manufacturer’s Assn. MSD Ignition NAPA National Institute for Automotive Service Excellence (ASE) Neway Manufacturing, Inc. Nilfisk Nissan OTC Div. of SPX Corp. Owatonna Tool Co. Parker Hannifin Corp. Perfect Circle Peugeot, Inc. Porsche Precision Brand Products Proto Tool Co. Purolator Filter Div. Quaker State Corp. Renault Riverdale Auto Repair Robert Bosch Rolls-Royce, Inc. Roto-Master Saab SATCO: Schwitzer Cooling Systems Schumacher Electric Corp. Sealed Power Corp. Sears, Roebuck and Co. Sellstrom Mfg. Co. Sern Products, Inc. Shell Oil Co. Siemens Corp. Simpson Electric Co. Sioux Tools, Inc. Snap-on Tool Corp. A special thanks goes to my wife (Jeanette) and children (Danielle, Jimmy, and DJ). “Portions of the materials contained herein have been reprinted with permission of General Motors Corporation, Service Technology Group.” Sonco Speed Clip Sales Co. Stanadyne, Inc. Starrett Stewart-Warner Subaru Sun Electric Corp. Sunnen Product Co. Test Products Div.— The Allen Group, Inc. Texaco, Inc. thenewsmarket.com Thermadyne TIF Instruments Tomco (TI), Inc. Torsen Toyota TRW, Inc. Union Electronics Uniroyal, Inc. Vaco Products Co. Valvoline Oil Co. Van Senus Auto Volkswagen Volvo Waukesha Engine Div., Dresser Industries, Inc. Weatherhead Co. White Diesel Div. ZF Transmissions