ProGold Xtreme 4oz Chain Lube
Combining metal friction reducer technology with more persistent carriers. Xtreme is a chain lube formula for long-distance and extreme off-road conditions. MFR bonds to metal surfaces and resists build-up and tackiness, in addition to shedding water.
Can't say I see a difference in performance between this stuff and the regular ProGold. That being said I love ProGold, and perhaps this stuff would make a difference in the right conditions.