Follow up about my friend using the oil in his DAM

Ok, so I posted a picture of 3 in 1 oil because my friend uses it in his DAM. Sadly, he now used the DOW 33 in it. Even though he just started last week using it. He was at the field and a person saw him putting the oil on his bolt, and freaked out on him, made him clean the bolt, and swab the inside of his gun out, and then re-lube it with the DOW 33 that comes with it.