[Mart]

Ok, thanks, gotcha.

Ok this is my non US perspective. Here we don't tend to have pickups as second vehicles and petrol cans have always been about. I've never heard any mention of it being a bad idea to carry fuel in the boot (trunk).

It must be a US thing. The only thing I have ever seen regarding fuel cans is that they must be made specifically for the purpose. The are signs in the gas stations stating that.
The cans are sealed so there isn't a smell, unless you are sloppy when filling them.

To each their own, though. This forum is global though, what is common practise in one country may not be in another.

Mart.