I recently purchased a quart of PRI-G Fuel Stabilizer. This product is similar in nature to Sta-Bil, except it is far more concentrated, (1 quart treats 512 gallons of gasoline). It is also much more expensive. I live in a hot desert climate where Summertime temperatures can get above 115 F. My garage is evaporator cooled, but on the hottest of days it can still get up to 90 F inside. Especially if I park a couple of hot cars in it. A quart of this stuff is going to last me several years, because I only treat my power equipment with it. (Power Washer, Generator, Power Blower, Chainsaw, Gas Powered Hedge Trimmer). And those aren't used on a daily basis. Hence using the PRI-G to keep the gas in them treated so it won't go bad. My question is would it be better to store this PRI-G Fuel Treatment in a small fridge, instead of on the shelf in a hot garage? I can't help but think it would be, but I'm not a chemist. I know it's bad to refrigerate some types of medications. We have this idea that cooler storage is better. And in many cases it is. I just wondered if anyone out there has any first hand knowledge of the best way to store these type of products? I tried to reach out to the company who manufacturers it, (Power Research Incorporated). But they want you to join Facebook, and give them a bunch of personal information before you can E-Mail them.