WD-40 Company
WD-40 Multi-Use Product Original Formula
The original. Goes in easy. Loosens everything.
by WD-40 Company
The one that started it all. WD-40's legendary formula displaces moisture, penetrates stuck parts, and protects metal from rust and corrosion. Over 2,000 documented uses — and a few undocumented ones we don't talk about.
WD-40 Original is the one everyone's tried at least once. Its light-bodied formula slides into gaps as narrow as 0.005 inches, displacing moisture and loosening mild corrosion with minimal foreplay. It won't satisfy the demands of heavily seized hardware, but for quick, casual loosening sessions, nothing gets you started faster.
What We Like
- + Penetrates deep into tight crevices with minimal effort
- + Displaces moisture so things stay slick long after the first application
- + Available everywhere — grab a can at 2 AM from any gas station
- + Multi-position spray valve works from any angle, even upside down
What Could Be Better
- − Doesn't last all night — evaporates faster than dedicated lubricants
- − The smell lingers, and everyone will know what you've been doing
- − Not ideal for repeated, high-friction sessions — wears thin under pressure
Who Should Buy This
The curious beginner who wants a reliable, no-commitment entry point into penetrating oils. Perfect for homeowners who need something that goes in easy and gets the job done without overthinking it.
Best For
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See This Product In
WD-40 vs PB B'laster
PB B'laster penetrates deeper on seized bolts; WD-40 is the better all-rounder.
Head-to-HeadWD-40 vs Kroil
Kroil wins on pure penetrating power. WD-40 wins on price and versatility.
Best-OfBest Penetrating Oil
Our top picks for penetrating oils in 2026. We tested WD-40, PB Blaster, Kroil, and more to find the ones that go deepest.
Best-OfBest Multi-Purpose Lubricant
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