Cleaning Naphtha is an excellent "after run" fuel for extended storage both gas and glow.
The one available here has a boil trajectory of 100_140°C, octane number unknown. I am not too familiar with Coleman specs though. I know octane number is 55, which seems largely identical.
I used the Naphtha oil mix mainly for glow engine storage. Run a small amount of 50/50 Naphtha/ATF mix in the engine to get all methanol and nitro traces out.