I think at that level they're all great and you could not be blaming any problem on the oil that's for damn sure. If you would like to see the data...Schaeffers oil makes all tech/data sheet available on their site. They are top notch.
To me it's like I like Levi's, I like Vans shoes... it doesn't mean Converse and dickies suck...its just at the level of quality and brand I've come to prefer.
