"350 g (12 oz.) can result in death for a 70 kg individual. As little as 10 to 15 g (less than one-half ounce) may be fatal in children. Symptoms of intoxication by ingestion of gasoline can range from vomiting, vertigo, drowsiness and confusion to loss of consciousness, convulsions, hemorrhaging of the lungs and internal organs, and death due to circulatory failure. Ingestion can cause irritation to the gastrointestinal mucosa and can be complicated by pulmonary aspiration, resulting in chemical pneumonitis."
https://wwwn.cdc.gov/TSP/MMG/MMGDetails.aspx?mmgid=465&toxid...
Highly refined gasoline that you can buy in pharmacies as mineral oil is safe to put on babies skin. It's not toxic in the order of magnitude that Tetraethyl-lead is.
A cup of octane wouldn't be the worse thing you could swallow. Given a choice, I'll drink a cup of octane before a teaspoon of TEL (OP appears to favor cooking units)