As I was looking to replace my 20+ y/o bottle of blue Loctite, I noticed what was to me a new product- Green Loctite. Designed to be used AFTER parts are assembled, it supposedly penetrates into the threads and keeps parts from vibrating loose. Has anyone ever used this? Does it interfere with use of a penetrating oil years later when trying to remove that fastener? I live in a snow-free area; so don't have any rust to speak of on my cars. But I learned long ago impact tools and heat are my friends.