Yeah, fuel is the bottleneck for sure. I think biodiesel or just straight up vegetable oil is a more viable alternative, but an ethanol based ICE is feasible. Motor oil will be made out of castor oil, like it was in the past before synthetics. I just think biodiesel will be easier to manufacture, even if its 10x the cost of petroleum based diesel, but you could be right that it will be more expensive to source fuel for an ICE than parts for an electric.
The scenario I'm thinking of is more like: manufacturing still exists, but its so tightly controlled by the feds that its impossible to get functional vehicles from the factory. Which is kind of how I think of the modern scenario I find myself in. Modern vehicles are shit that cost more than your house and are "totalled" after 5 years of service because some expensive and irreplacable component failed.
In a post-apocalyptic scenario we'll probably be driving cars than run on wood fuel.
[inv.nadeko.net/watch?v=r7xbM4HBBm4](https://inv.nadeko.net/watch?v=r7xbM4HBBm4 )