Hi all, I'm a new owner of an L783, am still waiting to get my hands on the owner's manual. Had some fits with the hydraulic system, shop found some pipe thread sealant on one of the hydraulic filters, is recommending a complete replacement of the fluid and of the filters. Unfortunately, price for labor and supplies is out of my budget right now. What should I use for the hydraulic fluid/oil? It's for use in Missouri if temps make any difference. Also, what's a good source for the filters? Thanks!