Yes, you can mix mineral spirits but don't know how well it will work for you. I recommend mixing about 1/10 of all the ingredients of what your recipe calls for so if you don't like it you won't be stuck with 10 years' worth of wax brew. Lots of strong opinions of what is the best concoction so try a few yourself and decide what works for you. I tried various wax brews for around 15k miles of experimenting and decided I would rather not use waxing but others love it. A little bit like everything having to do with cycling.