VICTOR. Thanks for the link, no way would I put paint thinner in an oil lamp. Lamp oil is good but too expensive, nothing but k1 kerosene for me. We burn a couple every night. Nostalgia?? Maybe a bit, but we just enjoy the soft glow. POWDERMAN.
We like them a lot. One of my earliest memories is the one my parents had, with the ritual Dad would go through to fill and light it.
A little further research indicates that some mineral spirits have a flash point of ~120 degrees, so that type should be okay in
some types of lamps/lanterns where the fuel res is not subject to high temps while burning and are self-extinguishing when turned on their side.
"Hot blast" tubular lanterns - where heated exhaust gas from the flame is recycled back
into the fuel res and up through the burner - appear to be the most dangerous type to use mineral spirits in. However, it seems that tubular wick "center draugh" lamps - where fresh air is supplied via a tube passing through the fuel res - should be fine.
Interesting to note that mineral spirits appears to popular among the Amish. That may be because mineral spirits = coal oil and was used prior to the invention of kerosene in the majority of lamps in the US. On the other hand, maybe they use it because it's cheaper(?)
Anywhoo, just make sure whatever fuel you use won't turn your lamp/lantern into a Molotov cocktail.