Synthetic Motor Oil as a Gun Oil

I've been using Jet Lube 12/34 on my guns since the 70's for cleaning & lubrication. I've never had any issues with this product for rust protection or keeping
action parts running smooth in wet & or freezing conditions. Very effective for electrical connections & switch gear in automotive & marine use. Love the stuff.
It has a pleasant odor to me at least. ;)

I've not bothered with motor oils, but Seafoam Deep Creep works nice as well on guns for me when applied sparingly. I use syringes to spot lube parts when needed.
The stuff has alox in it so it smells the same Lee bullet lube.

As noted earlier, never use chlorinated lubes on anything that needs lube. Corrosive, toxic garbage that fookin' crap be. Militech 1 as an example. f:P:
 
1. Many years ago, I did have a Mauser 98 freeze up on me one mid-winter afternoon in Alberta. Luckily I was only target shooting, but I did learn from that experience to always clean all oil and grease off the moving parts of a rifle before any serious winter use.

2. I also remember looking at one of the earlier all stainless steel rifles in Reliable on Fraser St. in Vancouver and telling them that I wanted to run it without any lubrication in Alberta winter conditions. Typical west coasters, they didn't seem to understand why I would want to do that and insisted that I should always keep all moving stainless steel parts well lubricated for fear of "galling". So then I asked them what the point of the stainless action was, since you had to keep it soaked in oil anyway...It went back and forth for awhile, and I left without their delicate "warm rainy day on the coast" rifle. This was back when stainless rifle actions were relatively uncommon and things may have changed since then.

(https://www.rg-group.com/blogs/what-is-stainless-steel-galling-and-what-causes-it/)

3. I once inherited a small collection of old firearms from an Albertan rancher uncle. They were jet black but with excellent bores from all the years of being lubed with god knows what oil..probably whatever he ran in his tractor and truck... after scraping down the stocks the walnut looked great. But indifferent oils will turn black over time.
 
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I just obtained 20L of Chevron Way Oil Vistac 68. It's on the heavy side which is no good for winter but the one quality I do like is the inherent stickiness. This stuff is meant for tool ways so it actually sticks to metal. I may thin it a bit and see how it acts on handgun slides.
 
I used synthetic 0w40 diesel motor for years. It was excellent. DMO is high in detergent too and is a little tackier so it does pretty good at staying put.
 
Lots of wonderful comments here....I have used various lubes over the last 40 years...but have always maintained, that 'less is more'....especially when hunting on a freezing Alberta day...I feel that keeping your action -Clean- is just as important as the type/amount of lube you apply.
 
I avoid using any detergent engine oil on my firearms or on/in machinery because, as I understand it, detergent engine oils are designed to pick up contaminants and hold them in suspension until they reach the filter. Not wanting to use any oil that will hold contaminants in suspension, my preference is to use a 10 or 20 wt non detergent oil such as a 2-stroke oil, compressor oil.
Have I been wrong all these years?
 
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