Bought an old 1994 Ford E150 conversion van. I have the entire five volume set of service manuals, but not the original owner's manual. Just out of curiosity, would like to see what information it contains. I am 74 years old, severely handicapped, and it is fully equipped with a wheelchair lift on the side and a handicap driver's seat. So I want to do the best I can to maintain it properly. Thank you.