"3-in-One" (the original product, now called "Multi-Purpose Oil") debuted during the first great bike boom in 1894, making it one of the oldest cycling products you can still buy. The oil was originally intended for bicycle chains, and the name indicated it "1) cleaned, 2) lubricated and 3) rust proofed", hence, 3-in-One. Chain lube is something of a religion, but after 115 years, 3-in-One is still not a bad choice for chain lubrication.

Fun fact: In the 1920s, pioneer American Birth control advocate Margaret Sanger was married to then president of the 3-in-One Oil company, J. Noah Slee. She smuggled illegal European-made diaphragms into the USA in secretly coded barrels of the citronella oil imported by 3-in-One.