Not a problem to ignore.

My buddys 88 Cherokee caught fire last week due a leaking injector and burned up the entire engine compartment before they could get it put out.(Hard to open a hood when there fire under it!)
The vehicle is a total loss. We'll pull the ARB locked axles, winch bumper and lift out but pretty much eveything electrical and plastic is shot.

He noted a slight gas smell in the cab the day before it caught fire.