'97 Lesabre

When fixing a flat this evening, I noticed the oder of gasoline near the rear of the Lesabre. I crawled under and found that there is a slight leak where the metal line from the tank meets the rubber hose (gas supply line). I'll fix it this weekend. It is a small leak. There is a lot of dust and dirt gathered where it is leaking. I am wondering if this would be enough to impact my gas mileage to some degree a) due to the leak and b) a reduction in fuel pressure? The car has been running great, but my mileage isn't what it used to be. On occasion, I have noticed the oder of gas when getting out of the car after shutting off the engine, in particular when it was warmer out.

Slight leak, very slight changes in fp and fuel mileage.

I had the same problem on my 97.

Dan