[dvldoc]

Yes you can mix alcohols, It harms nothing, Denatured does have a slightly higher viscosity than Methanol and tends to settle below the methanol and water over a long period of time but for daily use, Nothing wrong with it. I just put some Gin that was 90 proof that was on sale for 3 bucks in with my -20 washer fluid because Ace hardware on Guam was out and they are the only place that sells it here.