Locking Gas Cap
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Junior User
Joined: Mar 2005
Posts: 78
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From: southern california
Locking Gas Cap
Has anyone put a locking gas cap on their super duty. My neighbor came home from work on Saturday at 2:00 am and found 3 guys with a gas can getting ready to steal gas out of my truck in my driveway.He chased them and got a license plate but it was a stolen plate on the car. It has been years since I have heard of gas being stolen but with todays gas prices it doesn't surprise me that it will become popular. I was thinking of putting a locking gas cap and removing the V10 emblems off the front fenders so they wouldn't know if it's gas or diesel.
Sit. Stay.
Joined: Oct 2001
Posts: 18,308
Likes: 20
From: Washington State
I really need clarification on this...
I heard that you cannot siphon gas out of today's vehicles because of a check valve in the neck that is there to prevent leakage in the event of a rollover. This effectively prevents a siphon tube from making its way down to the tank.
I bought a locking gas cap to protect my 44 gallon investment ( @3.32 gal.
) and then found out this "info".
It's good to prevent vandalism, though.
I heard that you cannot siphon gas out of today's vehicles because of a check valve in the neck that is there to prevent leakage in the event of a rollover. This effectively prevents a siphon tube from making its way down to the tank.
I bought a locking gas cap to protect my 44 gallon investment ( @3.32 gal.
) and then found out this "info".It's good to prevent vandalism, though.
Senior User
Joined: Jan 2006
Posts: 400
Likes: 1
From: Calgary, Alberta, Canada
I always take my dog for a walk in an area where I park just off the road. Often after I drove away after the walk I would notice my gauge showing lower but thought it was just the usual faulty Ford guage. When gas shot up I put on a locking cap and I am now getting much improved in town mileage. I guess I was being ripped off. I have a 2000 F-350 so don't know if there is a check valve. It might not be that hard to punch out with a long flexible rod.
Junior User
Joined: Aug 2004
Posts: 83
Likes: 0
I got my locking gas cap at Checker auto parts. When looking up the part number, make sure you try whatever they give you first... I got the wrong one a Napa, and Advance Auto parts...
The guy at Checker said there are 2 differen types of Ford caps. So he told me to try it before I bought it. It was something like $17, but that's cheap insurance. Check valve or not...
Good Luck!
The guy at Checker said there are 2 differen types of Ford caps. So he told me to try it before I bought it. It was something like $17, but that's cheap insurance. Check valve or not...
Good Luck!
New User
Joined: Mar 2005
Posts: 16
Likes: 0
From: Colorado Springs, CO
I put a locking gas cap on mine just when gas initially went up, and someone decided they neede my gas more than I and drilled a 1/4 hole in my tank and let it flow into thier gas can. Moral of the story - the locking cap does not stop those on a mission.
Dave
Dave
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