Incorrect, sir. WD40 Myths and Facts I'll let that link explain it. I use WD to thoroughly clean the chain, but I do not spray it directly on the chain. I use a good heavy duty rag, saturate that, and clean. Repeat as necessary using clean parts of the rag. Once done with that, final wipe with another clean rag then either a brief 5 min. ride or letting it run on the stands to warm the chain. Apply your favorite chain lube and you're done.