this post was submitted on 02 Apr 2026
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ShowerThoughts
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Sometimes we have those little epiphanies in the shower.. sometimes they come from other places. This is a home for those epiphanies.
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I own a regular gasoline truck. It once spent over a year sitting in a driveway with no battery or driveshaft, and a half filled tank of gas.
After putting in a new battery and drive shaft, I didn't remember how much gas was in it anymore, so I took my 2gal can and put abiut half in to get it started.
No issues starting beyond the usual no gas primed in the line or fuel rail, so it took a second, and I drove it for about 50 miles before stopping at a gas station.
I have also never once swapped the gas in my mower after letting it sit all winter.
I understand that gas degrades, I just have never had gas that sat long enough to go bad I guess? I don't think 1 gallon of gas would "fix" 15 gallons of bad gas...
Lawn mower engines operate on nearly anything though.
Same with old vehicles, although newer gas with ethanol eats up the rubber.