I saw a vid of a guy that used a key for the gas cap but is there anything like that standard on it? If not does the dealer sell it or where can I get one made for the fit?

 

Honda offers one, but it doesnt come that way from the factory.

It's about $30.00

 

You can order one for the Honda Element and it fits. Only thing about the locking gas cap is... who wants an extra key just for that when they are set up to prevent siphoning like the man above already said. Someone had mentioned to prevent someone from dumping something into your tank... well that makes sense... but if they are at the point where they are gonna pour something down your tank and they come across a locked cap... they're just as easily gonna destroy your car some other way.

So... those are somethings to think about.