If WD40 isnt a good lubricant, what is?

I love WD-40. One of my favorite uses is on my bicycles and motorcycles, to clean grunge and chain lube. On the bicycles, I hit the derailleurs then wipe with a clean rag. There IS oil in WD-40, and it DOES lube, but it's a very thin lube (perfect for the bicycle application). Many a door hinge in the house has been blasted with WD-40, and it lubes those also. Stuff like this.

Where I used to work, our machinist used WD-40 all the time, for light duty lathe work lubrication. I teased him one time about it, and his response was "It's wet". Ha ha. Too many critics. WD-40 is amazing stuff.

Going back to motorcycles... My kid was selling his MT07, and it was looking pretty grungy. He cleaned the wheels, but a lot of the frame and attachment parts were looking sort of chalky dull. Handed him the WD-40 and a clean rag and told him to wipe down everything he can reach. 10 minutes later, the bike looked 100% better. First buyer to show bought the bike. Commented on how great it looked.
Totally agree and have used on many same things you mention. Here is a TRUE funny about WD40 that I bet some BITOGs who are boaters and fisherman know about. WD40 has long been rumored to have a strange ingredient. Fish oil! Yup. Fish oil. So, what about it.
YES, it did many years ago have in the mix, some small per cent of fish oil. WD40 does not any longer have a drop of it these days. Never the less. In all my younger years of pleasure and tournament salt and freshwater fishing n boating , myself and many others made good use of it. Not only on equipment. Many of us actually sprayed our fishing lures with it as an attractant. This was long before just about every lure company came out with their own special blend goop or spray on fishing attractants that are all over the store shelves these days. We can't prove it really worked but it certainly never stopped us from filling boat live wells.... I still know guys who always have it in trucks, cars or their boats for multiple purposes. (y)
 
WD40 is great to use as a starting fluid for dried out rings on 2 cycle engines and diesels.
LPS-3 is a spray grease (liquid that penetrates, then sets up to a grease/lube.
For all other things, I use this:
numb.webp
 
Some lube is better than none. Back in the day, I saw my grandpa use 3-1 oil on a rifle after carburetor cleaner. The right lube for the right job, its a learning lesson. I used to use spray silicone on rust but went to fluidfilm lonalin spray on little parts. PB blaster was a thing. Regardless, clean, dull and dry is imparative before application. Know your environment and what you expect it to do. Vasoline has worked as has mentholatum depending on the desperation and needed longevity. Sometimes just a drop on engine oil works. Used Redline CV2 on door hinges before, its still there.
 
I know WD40 isn't a lubricant. However, when I didn't know this, it used to make my car doors open and shut better as well as eliminating squeaking noises. It stopped working as soon as I found out it isn't a lubricant.

It contains up to 25% oil though.

LVP Aliphatic Hydrocarbon 45-50%
Aliphatic Hydrocarbon <25%
Petroleum Base Oil <25%
Non Hazardous Ingredients <10%
Carbon Dioxide <2-3%
Screenshot 2025-09-10 at 8.48.26 PM.webp

 
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According to Lubrication Explained, it is a good cleaner (due to its low viscosity) and some measure of corrosion protection. Due to the low viscosity, it does not make it a good long-term lubricant.

WD-40 analyzed and reviewed by Lubrication Explained:
 
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