Really random question

So, had to take oneof the fleet focus for work. 10ish. Flex fuel.

No fuel cap. Checked a couple of the others when i dropped off the car. No caps.

How the hell does this work? How do the tanks not fill with water in the rain?

isn't there a little spring loaded valve thingy?

Is water considered flexy enough as a fuel?  Surprised it doesn't set off an EVAP code.

Wife's Lincoln has that as well. It's a Ford thing.

The door has enough of a seal to keep the rain out, and an internal flap seals the vapors in.   I think all Fords have that now.  It was announced as a convenience thing, but I heard somewhere it was at least as valuable in reducing check engine lights for incorrectly tightened gas caps.

For a few years now, Fords have had caps that you are supposed to stick the filler straight through rather than removing.  It looks like a regular cap but is difficult to remove, because if you're not a moron, you don't have to - it has a little springloaded plug in the middle that is sized to accomodate the nozzle.

Maybe the fleet manager got tired of fileding calls from out-of-gas morons, and just threw away all the caps?

Not a new thing on Fords. My wife had a Focus like 5 years ago (the dodgy dual shift clutch debacle era of car). It had no cap.

FYI, a repair to one involves complete filler neck replacement whenever it starts leaking evap pressure. Depending on which car it is, rear subframe removal is often required to do so. Pure damn stupidity to replace a disposable screw on gas cap with an overly complex assembly with moving parts. 

13 Dodge Charger had that, too. The filler door had the cap built into it. Close the door, filler is "capped". 

So does my FoRS.

Cousin_Eddie said:

FYI, a repair to one involves complete filler neck replacement whenever it starts leaking evap pressure. Depending on which car it is, rear subframe removal is often required to do so. Pure damn stupidity to replace a disposable screw on gas cap with an overly complex assembly with moving parts. 

Especially considering that aftermarket replacement caps with the same kind of mechanism in them have been available for years.

Cousin_Eddie said:

FYI, a repair to one involves complete filler neck replacement whenever it starts leaking evap pressure. Depending on which car it is, rear subframe removal is often required to do so. Pure damn stupidity to replace a disposable screw on gas cap with an overly complex assembly with moving parts. 

<flounder>  Have you seen what our wonderful government has done to the lowly gas can? </flounder>

In reply to Duke :

I didn't understand why a vendor had boxes of them at the Carlisle meet last year. Then I bought a new gas can with the push type neck.

The new ones with the button are pretty sweet for filling my power equipment though.