3 in One oil (newbie question)

[Deputy Marshal]

I use Militec-1 with good results. Anybody out there ever used this product?

 

[Neumann]

3-in-1 oil has a vegetable base, or something unsaturated. It will oxidize in a relatively short time to a sticky gum. That happens even faster with heat (as in an electric motor). Use a good quality petroleum based lubricant, or a synthetic.

WD40 doesn't seem to oxidize, but it doesn't have enough film strength to provide lubrication or protection. I don't use it on guns, but it penetrates well for breaking screws loose - too well to use anywhere near optics.

I use milspec W25 grease on rails, with a layer of CQC floated on top. That's more slippery than raw oysters and lasts a long time. It doesn't stiffen in cold weather like petroleum based grease.

 

[crofoot629]

I recall clearly where a Gun Magazine did a pretty good controlled test some years ago to see what oil protected bare steel best to moisture.

Oddly Hoppe's #9 came out on top. And we don't even think of it for this purpose.

I don't remember what all they tested but I do think CLP was in there.

Emory

 

[bp231986]

I use Weapon Shield oil and grease.

 

[cfplinker]

From the 3 in 1 MSDS

Ingredient CAS Weight Percent
Severely Hydrotreated Heavy Naphthenic Oil 64742-52-5 >97
Naphtha, petroleum 64742-47-8 <2
Non-Hazardous Ingredients Mixture <3