Here's the Diosol formula posted on another site by a chemist who did the analysis
"...38% by vol toluene , 41% by vol xylene and 21% by vol Solvesso 100 ( a long evaporation rate aromatic hydrocarbon solvent ). Getting the toluene and xylene is not difficult , but the Solvesso 100 is only available through chemical suppliers"
Solvesso 100 solvent is a grade of Naptha.
I found by mixing my own Diosol buy the finest grade solvents you can. A good Sherwin-Williams store has everything. I would avoid the chain stores.
This formula will rejuvenate old bottles of Floquil paint, some better than others. Filter the results if you have doubts. And it should rejuvenate your bottle of Glaze unless it has turned to jelly.
Exercise caution and mix components in a well ventilated space.