The best stuff is Coleman fuel but it is stupidly expensive. You can also get Aspen fuel and it is the same thing. I run my MSR on that, no worries Aspen Fuel Linky
Unleaded can give you problems with jets clogging up; that usually happens when you don't have a spare jet or cleaners with you
I've had a Peak One for over 20 years, and although it will run on other stuff, I now only use Coleman fuel in it. I managed to get a stock of about 10 litres from a camping supplies place that was closing down, so I'm sorted. Otherwise it is stupidly expensive.
I used to run it on unleaded, but it spits and flares a lot, and burns dirty. After about year on unleaded it wouldn't light at all, and I had to run it through with white spirit a few times to clean the generator tube and nozzles. Unleaded burns colder than Coleman too, so you can end up with a drizzle of unburnt fuel seeping over the top of the body, which can catch fire later... this has happened to me on a number of occasions, and is really alarming !
I haven't heard of Panel Wipe, but I will certainly look into this, as at present, Coleman Fuel is around Â£6 per 500ml.