In a message dated 2/28/11 10:18:14 PM Eastern Standard Time,
uprightbassghost@HOTMAIL.COM writes:

> No cracks, etc.  Smelling around the van doesn't help. It seems to "go
> away"
> right after smelling it.  It's like a big whiff when you come towards the
> van then you can't smell it anywhere around the van after that.
>
>

what about the seal where filler neck goes into tank?