[Dee Duble Yuh]

I don't like Scottoilers for their complexity and the fact that they need as much attention - possibly more - than just using chain spray. Just look at the other thread about drip rates if you need proof. Chain wax and other modern sprays do not attract dust or cause wear.

In particular I don't believe the "it'll pay for itself" argument for Scottoilers. I posted the following previously in another thread:

Let's say a chain normally lasts 10,000, but is doubled with a Scottoiler (that's generous). Also to keep things simple, let's say a new chain set costs £120 fitted, and a Scottoiler, large reservoir, dual nozzles etc cost £120. (You gotta fanny around fitting it yourself.) Let's assume spray grease and Scottoil costs about the same so they're ignored below.

         ! Without Scottoiler  ! With Scottoiler
0 miles  !   £0                ! £120 plus a lot of your time.
10,000   ! £120                !   £0 (breaking even so far)
20,000   ! £120                ! £120 (still breaking even)
30,000   ! £120                !   £0 (ahead slightly now)
40,000   ! £120                ! £120 (still only slightly ahead)
50,000   ! £120                !   £0 (at last we're making headway)

30,000 miles before you see any advantage and 50,000 miles before you see significant financial gain? And there are all those tubes, and constant checking how many drips-per-minute? No thanks.