Last Non-winter

[Succubus#2]

When it comes to fossil fuels, either as a primary fuel or a recycled fuel..

There is no such thing as recycled fuel without an input of energy.
Combine a hydrocarbon fuel with oxygen and there is a release of energy, water and Co2. Forget water for now and forget the energy, it's gone, we're left with Co2. To make fuel out of Co2 nature wants its energy back and there will be a loss. It takes more energy to create this new fuel than the new fuel has.