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GPierce · 11-23-2023, 04:38 PM

Modern cars don’t suffer from this problem because the fuel tank is sealed.
Model A’s, lawn mowers and airplanes tanks etc, are vented all the time. Cold night fuel contracts and pulls in air. Warmed during the day it expands and the next night it pulls in air as the fuel contracts again.

11-23-2023, 04:38 PM	#7
GPierce Senior Member Join Date: Dec 2014 Location: Germantown,TN Posts: 573	Re: Ethanol 101 Modern cars don’t suffer from this problem because the fuel tank is sealed. Model A’s, lawn mowers and airplanes tanks etc, are vented all the time. Cold night fuel contracts and pulls in air. Warmed during the day it expands and the next night it pulls in air as the fuel contracts again. Last edited by GPierce; 11-23-2023 at 04:44 PM.