Its probably more critical now with the use of oxygenated fuels.

There are also different seasonal blends of gasoline. With "winter" gas, there are more additives in it that make for easier starting in cold weather.

From personal experience from living in Northern Canada for many years, stored "summer" gas at times would not start my truck or 12 HP snow blower when it was colder then approx 25 degrees F. This also depended on other environmental factors such as humidity etc.

Once the fuel had been switched to winter blend gas, the engines would start and run much better.

I was told by more then one person who worked at the local refinery that produced gasoline that in general, the winter blend gas stores much longer then summer blend due to the extra additives.


This website explains it much further..

Does anyone know the temperature limits of these cans?

I live in Southern California in the desert area where it is 120 during the day lately. If I stored them in a shed with vents in the top (for vapors) obviously the cans would be shaded.

Thoughts?

That sounds great.....I already put an order for 5 cans in

Since you live in California, any gasoline cans you order will have to be CARB-rated (unless the business you’re ordering from doesn’t really care about state regulations). CARB-rated cans are designed to vent any excess vapors automatically when too much heat causes the pressures to rise.

Keep in mind, however, that gasoline vapors are heavier than air. The vents at the top of the shed may not do as much good as you would like unless there is really good air circulation in the shed. It is recommended that gasoline storage enclosures be vented at the bottom. Fortunately vents are pretty easy to add to a structure (unless it’s concrete or in a basement or something, which I doubt).

During mid day it seems to get about 115 degrees in the garage.

Any thoughts on that with those cans?

it's the other part of probably that is worrying me