Lately my husband and I had our trucks messed with at night. We called the police to make a report and found out that a guy down the street had his car messed with too. Actually his gas was siphoned out twice in two weeks! Although we didn't have our gas taken, we decided not to take any chances. We bought these locking gas caps and put them on the next day.
Instillation was fast and easy. My husband put them both on for us, but all he had to do was take the old cap off and put this one in. There are different types you can get, but our trucks have a threaded turning style cap so we had to get that style.
Each cap comes with two keys. Both keys are engraved with the word "fuel" so you can tell them apart from all your other small keys.
It's easy enough to use the cap, but it is a little annoying. I'm so used to just unscrewing the cap with one hand and letting the cap hang though. Now, I have to use one hand to turn the key and the other hand to unscrew the cap. The cap is not attached to the truck at all, so I have to hold it with my keys in it while the gas is pumping. No real big deal, but it's different. To put it back on, you have to put it in, turn the key, and then twist the cap until it clicks.
I'm glad we got these caps because I have been hearing more and more people getting their gas siphoned at night. $15 is definitely a good deal when it comes to protecting your gas at the price it's at these days!