What is "synfuels"

Usage examples of "synfuels".

The synfuels were too expensive to waste, and when you tried to get some speed out of them they began to eat out the engine's guts.

There were even those who insisted that the synfuels were specially doctored to tear up an engine's innards at anything over fifty: Washington's way of enforcing energy conservation.

But now, with government restrictions on travel and synfuels astronomically expensive, the roads leading to Kennedy Space Center were nearly empty.