>>1189532I've usually got a few in the bed of my pickup when I travel/camp in the truck.
If it's a sketchy/populated trailhead i'll throw the jugs in the trailer.
Weekdays when there's nobody out there, it's never an issue.
"n-heptane" is a chemical that looks like gasoline, smells like gasoline, and it's used as the zero reference on the octane scale. Cars don't run very well on zero-octane fuel.