So I've recently purchased my first circular saw, a r3200. I'm not sure if I made the mistake of reading the manual in too much detail.... The users manual for the r3200 says the following:And I'm sorta stumped on what type of oil they mean? I assume this is required, but at my local store they just gave me blade cleaner when I asked -- and I'm not sure if that seems right? While I'm here....... It also says this:Wipe a drop of oil onto inner flange bushing and outer washer ("D" washer) where they contact blade.....snip...Remove outer washer ("D" washer) and spring washer.I assume this means that the spring washer gets tossed? Thanks for the help.Replace "D" washer.