I've scanned some of our reference books at work, and thought I would share. There are physical size specs (in mm), thread sizes, and compatibility sheets for oil, fuel, air filters (even fuel hose sizes that will fit the fuel filters), and part numbers. I think it will help a lot with sourcing replacements. I can add any vehicle anyone needs.. just let me know year and make/model. Trying to upload the file, but having issues. I'll try separate posts.. EDIT: Mod or Admin.. Cannot upload files even under the 3MB cap with any computer or browser. If you could contact me with a viable email address, I can send the file (or files) to be posted.