Which one? White Lightning has a few different formulas with different properties. I tried the "Clean Ride" variety for a while, and it did what it said... the chain did stay very clean. However, being a wax, it wasn't very durable, needing to be frequently reapplied (seriously, I'd sometimes only get 50 miles or so out of an application). It also was difficult to apply in cold weather, since it would solidify as soon as it came out of the bottle. Right now, I'm actually using a bottle of 3-in-1 PTFE lubricant that I picked up at Lowe's until I can find something better. It does a good job of lubricating, but does pick up some dirt/dust.