Any substance, especially a chemical irritant, is capable of causing major tissue destruction if injected into the skin and underlying soft tissues under high pressure. If severe enough, this could result in amputation. If of a lesser degree, loss of muscle and nerve damage resulting in serious loss of limb function.
You should not subject yourself to this risk, without adhering to every known and recommended precaution.
I am a little confused on your question but disel fuel is highly toxic to humans and can cause severe chemical burns to the lungs and other internal tissues.