3 ms·
Lots of people here are saying that WD-40 will clean dirt out but is not a lubricant (or is a terrible lubricant). As a not-very-practical person, here's my que
by quietbritishjim 7y ago
Lots of people here are saying that WD-40 will clean dirt out but is not a lubricant (or is a terrible lubricant). As a not-very-practical person, here's my question:
If you have something very dirty that you want to lubricate, say a bicycle chain, is it reasonable to apply WD-40 first to get rid of the dirt and then apply a better lubricant on the now-clean chain? Or will the WD-40 stick around long enough to prevent the better lubricant sticking? If the second, what the hell am I meant to do about my dirty chain that needs lubricating?
- m0nty 7y agoWD40 is indeed great for cleaning things, including bike parts. And you can use it as you suggest, then apply another lubricant designed for bike chains. However, there are other cleaners specifically designed for bike chains. It's just that WD40 is often in the workshop or toolbox so it tends to get used for this sort of task.
- short_sells_poo 7y agoIf I remember my mechanic's advice correctly, you have to be careful what solvents you use. You might dilute/prevent lubricants from actually staying inside the chain links with WD40. Put differently: the solvent you use should be paired with the lubricant to ensure you get the best effect from both. Almost universally, the recommendation was not to use WD40 because it's just not good. I may be talking "old wives tales" here though so I'd like an actual mechanic to correct me please.
- m0nty 7y agoAnother my mechanics fan ;) Was literally just watching his latest video. Happy not to use WD40 if that's his advice. I know oiling bearings which have grease in them is a no-no for just the reason you describe - will loosen the grease and so ultimately damage the bearing.