Introduction to Expediting << this is a PDF file
http://www.expeditersonline.com/forum/newbies-faq/30332-what-t-val.html
http://www.expeditersonline.com/forum/newbies-faq/29432-trucks-do-wear-out-right.html
http://www.expeditersonline.com/forum/newbies-faq/29427-maintenance-spreadsheet.html...