Who manufactured your slide? You mentioned "location of the resevoir and what oil to use"
Would it be Power Gear or EZ Slide System? Does your coach use the reservoir and oil only for the slide, or is it used for other coach systems?
My last coach was a 97 Discovery, and it used the EZ Slide. If yours is like mine was, I might be able to help.
Good Luck, Be Safe and Above All, Don't Forget To Have Fun
2006 Fleetwood Discovery 35H, 2014 Honda CR-V, M&G Engineering Braking System