Everyone has their favorites that they swear are the best.... and there's tons of anecdotal evidence. Not to deride this evidence or other knowledge, but with as many chain lubes on the market, and as many chains are in use around the world on the many different pieces of machinery and equipment, I'd think there'd be some tests to put what seems like a regular debate to rest. Good or bad, back in my young MX days, I wired brushed the chain (non o-ring) then spayed copious amounts of blue Bel-Ray on. In recent yrs, I've used diesel to clean my chain then I soaked it in heavy weight motor oil, as per the manual. I'd like something less messy though, less time consuming, something that won't fling a bunch of oily gunk on to my riding clothes and gear when touring hundreds of miles from home. Maybe at the end of the day, the exact lube matters less then simply keeping the chain clean and lightly lubed with something. The thought of a small can of WD40 doing both sounds awfully tempting considering my minimal luggage on backcountry tours, availability, versatility, and low cost. But it's a "water displacement" and not a "chain lube".... and I know many people think it's a really dumb idea. Others think not. Where's the science to prove it either way.... or any "chain lube" for that matter? (I watched one Youtube vid stating WD40 didn't degrade the o-rings but didn't consider it overly scientific). Open to suggestions... something that isn't messy that comes in a small container. Dry lube with teflon? A wax based lube? Non-spray lube? ??