I'd have to go with those who said WD 40 and lighter fluid.
The lighter fluid is simply naptha, or what was known for years as dry cleaning fluid. It's what gets the grease out of mechanics uniforms that are provided by the uniform company. It's also great around the house to get out small stains on dry clean only upholstery, like couch cushions, curtains, and such. I worked for a shop in Charleston that had a policy, if you got grease on a seat or carpet, and it had to be cleaned, you paid for it out of your own pocket. All of the mechanics kept a can of lighter fluid in their tool box for that reason.
Another nice thing about WD 40 besides it cleaning and lubricating in one step is that it is non-conductive. You can use it on electrical wiring and such. A car alarm rep once showed me that trick. You know how the keyless entry remotes get corrosion on the battery terminals? Just use WD 40 and a toothbrush and the stuff comes right off, and the residue won't short out the unit. Works on flashlights too.
Of course, if someone throws a full can of WD 40 into a fire, say one that is burning in a fifty-five gallon drum, like when you're a security guard on a cold night and you're also bored, action will definitely pick up. Especially if your boss, who is a Vietnam Vet with PTSD, pulls up and gets out of his car just as the can of WD 40 explodes.
The fireball must have gone at least forty feet in the air, and I never would have believed that a 270lb man would fit underneath a Plymouth Reliant K-car.
