when you say 'oil light' which one is it?
and what code is displaying?

you may or may not get a copy of the error codes because like edward says , this information is not supposed to be given out (but unfortunatly it happens) and the file is rather large

due to legal issues most people wouldn't want to start passing this around. One of the worst things i've seen happen to a forklift is giving a manual to someone that does not know how to read it or have a clue how to work on the truck. Not saying you don't know how... it just is an observation i've seen throughout the years. ;o)