Isn't our biggest problem with gasoline today the Ethanol(more Hygroscopic, increased corrosion)? Sta-Bil use to be the go-to treatment for storage, but according to my trusted source, the better product to use is StarTron Enzyme Fuel Treatment (I have no affiliation what so ever with this product). My source is a trusted mechanic who also works on small engine equipment as well. He has used the test strips(before and after) and unlike Sta-Bil, claims it actually knocks down the Ethanol. All the other claimed benefits of the product are essentially the same(reduced gum/varnish,extends gasoline life,stabilizer,etc.) Also, if available in your area(and you can afford it; $7.50 a gal. for me here in CA.), Ethanol free 93 gasoline would be the best to run through the car and store it with. I look forward to any and all feedback about this.