This is partly true but the original premise was the having these different
formulations was adding significant cost to the price of gas. Since gas
needs to be different for different markets anyway, there is little added
cost. The market is so large that even with 30 different formulations each
is produced in huge volumes and none of them are specialty products in the
way that avgas is. As Friedrich points out, vapor pressure has to be varied
with temperature. Refiners have always had different formulations for
different climates and for summer and winter. If all gas was the same,
consumers wouldn't be happy with the product.

Mike
MU-2

"W P Dixon" wrote in message
...
But Friedrich!
The reasons here in the States that the gas is different has nothing to
do with the reasons you put forth. The reasons here is because a group of
politicians pass laws for the tree huggers, to make more anti-pollution
standards that the gas industry in this country is not equipped to handle.
And before the tree huggers get offended, AHHH go get in YOUR car and
drive
to work just like everybody else..earth murderer!!!!HAHA
But anyways , hard starting in altitude and extreme cold has nothing to
do with the political agenda of our gas problems. It should be those
reasons
you put forth, but sadly it is our government over legislating..as it
tends
to do!

Patrick
"Friedrich Ostertag" wrote in message
...
Hi kontiki,

They have always done this. Gasoline in MN needs to be different
from that in AZ.
and WHY? This is NOT necessary, it is pure politics and costs us all
money and wasted time and overhead. Thank you again Mr. Negative.

It IS neccessary. Just to name an example, evaporation proporties need
to be adjusted to climatic conditions. Try and fill your car in AZ,
preferably at a high altitude location, then drive it to one of the
northern states without refueling (probably won't work with the mileage
you get on current US cars..:-)) and try to start it in the morning at
below freezing temperatures. You will be surprised.

regards,
Friedrich

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