Is there any significant difference between 5-56 and WD-40?

Question

In Sweden, we mainly use 5-56 for "everything", but in the U.S. WD-40 seems to be the thing.

Both seem to penetrate deeply, dissolve rust and do some slight lubrication.

Just curious to the differences, if any any.

You can add Phosphoric Acid (or Cola) to help the WD-40 along (or to shine your rusty chrome!) — Spechal, May 11 '11 at 04:41

score 4 · Accepted Answer · answered May 10 '11 at 23:01

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They are competing products that are both advertised to do the same five things (WD-40, CRC 5-56). It's not clear that one is any better than the other.

answered May 10 '11 at 23:01

Vebjorn Ljosa

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How about PB-Blaster? Anybody use it? – BrianK May 11 '11 at 17:58

score 0 · Answer 2 · edited Jan 21 '13 at 12:50

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PB Blaster is truly a superior penetrant to loosen frozen threaded fasteners.

PB Blaster

No comparison to WD-40 or CRC 5-56

edited Jan 21 '13 at 12:50

Tester101

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answered Jan 21 '13 at 02:08

user11188

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Could you describe how and why it works better? – BMitch Jan 21 '13 at 12:52
Hey, just to mention this link is broken now :) – Tor Haugen Mar 13 '20 at 20:23

Is there any significant difference between 5-56 and WD-40?

2 Answers2