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Discussion Starter #1
This may be much ado about nothing, however...

I have noticed for the past few months that when I remove my gas cap to fill up, there is no pressure. There used to be when I first got the car about a year ago. I also noticed that my mileage seemed to drop a bit afterwards and it appears to be directly proportional to how long the car sits. I'm guesstimating there may be some evaporation going on.

I am having no problems starting or driving the car. Everything in those respects has remained similar. FL strongarmed us into, er, swapped over to Ethanol months before this so the mileage reduction is in addition to the hit we took for the new fool, er, fuel.

Is it just as simple as getting a new gas cap or might something else be going on?
 

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if your engine light isnt on I wouldn't sweat it, the pcm has evap sensors and they trigger a code when its not right.
 

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Ethanol typically doesn't produce the same MPG as Gasoline.
 

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Discussion Starter #4 (Edited)
Ethanol typically doesn't produce the same MPG as Gasoline.
Noted that in my original post. This is a separate hit I seem to be taking.

if your engine light isnt on I wouldn't sweat it, the pcm has evap sensors and they trigger a code when its not right.
The CEL light is not coming on so apparently no codes are being thrown.
 
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