Coleman fuel is VMP naptha. (VMP = "varnish makers & painters").
Yep, just a light petroleum solvent. Naptha, mineral spirits, varsol, stoddard, etc... are all in the same family.
Jeff Point
RV-6 and RLU-1 built & flying
Tech Counselor, Flight Advisor & President, EAA Chapter 18
Milwaukee, WI
"It All Started Here!"