Thread: What's wrong with WD40?

now i will note this, its not supposed to be used in firearms because firearms get incredibly hot with use. from revolvers to ak's theyll flat out melt your skin off if your firing them fast/long enough.
i would imagine that this heat is why they say not to use it on guns,
also, NOONE recomends wd40 for long term protection, its to clean, and then wipe with manufacturer recomended oils, which would vary between stainles and carbon, guns and engines etc etc.. might it be OK, yes, but definitly not recommended.
it doesnt lube for long, if you put it on a squeaky chair itll be squeaky again in no time. the only times itll seem to last long is when it actually loosens pre-existing oils.
it is known to carry the same ingrediants as stoddard solvent :

White spirit - Wikipedia, the free encyclopedia

results from nails being misted with salt solution:
brand.............................after5 hours.......................after 29 hours
Best
Eezox ....... No rust, bright........... No rust, bright
Break Free CLP .........No rust, bright ....No rust, bright
Excellent
Break Free LP........... No rust,bright ...........Trace rust freckling
Very Good
LSA Medium Weapons Oil .........No rust, bright , .......Some freckling small rust spot
WD-40....... Trace freckling......... Some rust freckling, few spots
Good
RemOil....... No rust, bright........ Some rust freckling
TW25-B........ No rust, bright .........Some rust spots and freckling
Fair Rust Prevent Trace .......rust freckling....... Significant coverage with rust spots
Maybe
CRC 5-56 No rust,.......... bright Freckling.........rust strip 1/3 of bottom
Sheath Trace.......... rust freckling......... Rust spots & freckling
Unsatisfactory
Hoppe's Lubricating ......Significant rust on bottom....... About 50% rust covered
3-in-One Oil ........Significant rust spots ......More than 50% rust coveredtaken from gssixguns link.
The Gun Zone -- Corrosion Test

that eezox better be some good stuff, its exponentially more expensive than wd40, over 3 dollars for 1.5 ounces, my wd40 im lookin at cost the same, and is 13.5 ounces, plus these can come in twin packs and stuff.

ive been trying and trying to convince my buddy not to use 3in1 on his guns. but it says guns on the bottle so he wont listen/.