Yes, I do, or really any decent pure methanol would be fine.
The blue stuff will eventually clog your nozzles, and you can never be sure you aren't getting some additional additives. I have the general rule of thumb about at least -30 fluid etc, but I'd rather just mix it myself with pure distilled water, and still come out way ahead on the deal.
Same reason I added a dedicated tank vs the washer reservoir. Meth & Distilled water only please!