jkyocom, I didn't mean to imply that you would mistake gasoline fumes for exhaust gases. I'm pretty sure if most of us saw what looked like that amount of gasoline fumes venting into the air near a gas station, we'd keep drivin'...
At the refineries that I'm familiar with, gasoline and gasoline blend components leave the production units and enter tankage at roughly 100 degrees Fahrenheit - or more, in summer, maybe a bit less in winter here in the GWN...
The trend lately is to minimize the amount of fuel in storage, so it gets shipped quick these days, so even in winter, it doesn't have time to sit in the tank and cool down for long...
The bulk storage tanks sit in the sun in the tank farms, some do have small trim coolers to keep temperatures below 130 or so, and heaters to keep the tank above 85 or so in winter.
A lot of the newer service stations have their storage tanks located in below-ground concrete containment vaults, just like your basement. As opposed to being in contact with the earth, as the old direct-buried tanks were, modern storage tanks reside in these vaults which are power-vented, so the vaults themselves are at roughly ambient temperature...
And yes, I've seen remediation wells on cleanup sites. But I'm not familar with anything that would vent exhaust gases, or much heat - the ones I've seen were run by electricity, the pumps and the separator.
Just my experience. Lots of people on this site will already know these things, this is for those less familiar with the subject! And things may be different in your neck of the woods.
As far as the original question, yes, I've noticed that gasoline is served warmer than it used to be. I vividly recall the tank on my motorcycle would be covered with condensation after a fillup with cold gas on a hot, humid day. But that was 30 years ago...
[This message has been edited by silent chief (edited 09-08-2007).]
