Chain lube

[GoldOxide_imp]

and what determines the correct rate of drip?

There is a small knob on the lower side that ranges between completely closed to completely open. I would guess there is about 4 to 5 rotations of range. The user's guide provides suggestions of drip rate. Using a magnet, I hold the plunger weight in the open position and count the drip rate per minute to the rear sprocket. I think in my case I have it set to two drips per minute, or about 2.5 turns (if I recall correctly) of the valve. The magnet is then removed. Your mileage will vary with your personal need, the type of lubricant you choose, the season, and the lubricant weight. I use a 10W40 weight. Tutoro has their recommendations.

In any case, all season my chain and sprocket teeth are "wet", but not slinging. I don't seem to experience the mucky build-up on the chain compared to when using say Motul Chain Lube.