05-03-2025, 04:12 PM
graylocks wrote:
[quote=Forrest]
I can only speculate the 10% ethanol gas went bad because drivers were charging all the time.
don't know about other plug-in hybrid but the Volt was engineered to prevent this. If your gas aged to a year the engine entered Fuel Maintenance Mode to burn off the gasoline. I don't think my new Niro has that. Maybe because the electric range is only 31 miles; there's no way to not use gas.
I believe the Volt must only burn one tank of fuel a year. As DinerDave mentions, the fuel system is designed to handle 10% ethanol including a stainless steel gas tank and all the fuel lines as well as having a system to take care of condensation forming in the tank. We just came back from over-wintering in south Texas and our Volt, which sat for six months, started but required we burn off the some of the remains of the gas. (I use a battery maintainer on the 12v battery.) I had left only a gallon in the tank and I refueled it right away which, it seems, satisfied the computer. We will no doubt burn eight gallons of the nine gallon capacity tank off before we leave again at the end of October even if I have to force the ICE generator to run.