yes,the other day i was letting my car run and reving it up a lil bit and it started to smell like gas/fuel on the outside.I turned the car off and came out the next day and found a large burnt orange stain of some dreid up something... i dunno what this is does anyone know or can help me im not very good with cars thx in adavance. its a 89 max se

 

Where was the stain?
on the ground?
on the roof?
on the drivers seat?
at the end of the exhaust pipe?