Originally Posted by email@example.com
All in all, more expense and trouble than the cost of the fuel that could be stolen...
I can't argue with how much trouble you think a locking gas cap is, but you cannot say that a 40 gallon tank full of $3.75/ga diesel is worth the same amount of money as a $10 locking gas cap.
I put one of each tank of my Chevy pickup a couple of years back (bought them keyed alike) because gas was $4 and my truck sat outside. I don't find it to be a hassle, and the $12 I paid is well worth the piece of mind. If someone is out and up to no good, they will most likely pass up my truck and find an easier target.