Originally Posted by Boris
I got some more advice I don't think we talked about in this thread yet.
I been around some folks lately that love to use motor oil. It will lube in an emergency just fine but it should not be your go to lube.
Motor oils are 25% additives that are not oil. The detergent additives have polar and non polar ends to the molecule. Water will not attach to the oil, but it will attach to the detergents. What you get is separation and an oil water emulsion. The higher the quality of the oil the faster the detergents separate. It is not measured over a long period of time either. It is measured in the seconds.
Once the oil separates from the water these chemicals will get on your hands, clothes and body. We all know the chemicals in motor oil are not healthy and would not be good for prolonged contact with skin.
Motor oil is also designed for attracting dust dirt and anything that even gets near it adding to the separation problem.
Don't use motor oils on firearms folks. Its nothing but bad news for the firearm and even worse news for you if you come in contact with the separated additives.
Some good reads
Don't waste your time on motor oil. Use only the highest quality firearm lube you can get. Obviously I use SBGO. Been for a tad over a year now and nothing compares....
Everytime I've seen someone recommend motor oil for firearms its been recommending 100% synthetic (such as Mobil 1) which I believe are all NON detergent. If not, there are many non detergent motor oils available. I have in the past used Mobil 1 on my AR10s and they ran perfect with no adverse effects.
BTW, what finally happened on the shotgun barrel test? No mention of it since the first page of this thread and two other oils were working as good as the SBGO.