What is summer grade gas?

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asked Oct 15, 2020 in Other-Cars/Transportation by AKHIL (560 points)
What is summer grade gas?

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answered Oct 15, 2020 by Shelde (49,390 points)
Summer grade gas is gasoline that is made so that it does not evaporate as easily in the summer heat.

The summer grade gasoline can still sometimes evaporate if the heat is high enough outside but as long as the gasoline is used up before it has time to evaporate then the summer grade gasoline will be less prone to evaporate.

Summer grade gasoline costs more to make and refine because summer grade gasoline is made so that the summer grade gasoline does not evaporate as easily during the summer months.

When it's hot out the summertime heat can cause gasoline to evaporate from gas tanks, gas storage tanks, gasoline refineries and the gas storage tanks at gasoline stations.

So the gas refiners have to make it so that the gasoline is less prone to evaporate which causes the gas to cost more in the summer.

In the winter months the gasoline does not cost as much because it's not gonna evaporate as easily since it's cold outside.

Although in some places gasoline may contain an antifreeze additive to help prevent the gasoline from freezing up or getting moisture into it.

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