Looking to see if anyone has found a locking gas cap that fits their late model F 250. The application guides online give mixed results and I don't believe they are anything like reliable. Stant's guide, in particular, shows some odd results.

 

I have the Stant 10510Y E85 Flex Fuel Locking Gas Cap

 

Amazon shows that cap doesn't fit my 2015. Stant's application guide shows that cap fits the 350 and 450's only. What year is your truck?

 

in my signature...2013

 

I spent money on a locking gas cap for my 1996 Jeep. Then one day, when I needed to drop the tank, I tried to siphon it down. Turned out it couldn't be done. It's my understanding all new(er) tanks have some kind of baffle to prevent that sort of thing.
You might try siphoning your tank before springing for a new cap.

 

I would like a capless option-

 

There have been tank contamination vandalism in the area I live in. I'm not so concerned with someone removing the fuel as I am someone adding something vile to it. It is good to know that someone siphoning is not a risk.

 

I want one like my 150 ecoboost had so I dont have to take the cap off I can just stick the nozzle in and go.