https://www.ceramicspeed.com/media/3505/velonews-friction-facts-chain-lube-tests-combined.pdf https://www.ceramicspeed.com/media/3505/velonews-friction-fa... S

https://www.ceramicspeed.com/media/3505/velonews-friction-facts-chain-lube-tests-combined.pdf https://www.ceramicspeed.com/media/3505/velonews-friction-fa... See page 63 for efficiency and 64 for longevity. The graph on page 64 is confusingly labeled, but the numbers indicate "watts expended before wet dirty run" - "watts expended after".