Has anyone used this oil?

[57Fury440]

I have been using this for a few years now. No problems. My cars are only used in the warm weather. They are sleeping during the winter months.

[dodj]

While not quite the question you were asking Murray, but if you are looking for high zinc oil, my favourite has been Amsoil Z-Rod synthetic 10-30

[blown motor]

I use Castrol GTX with STP oil treatment for the zinc. I hadn't heard of Castrol GTX Classic, that's why I asked.

[usraptor]

I've been using Lucas Hot rod and Classic oil in my 440.  It says it is specially formulated for older style engines with high zinc content.  https://www.summitracing.com/parts/luc-10679-1