An amazing movement to run your car on, grease.

Blame it on Rudolf Diesel. Without his garbage-guzzling compost burner of a combustion-ignition engine, we wouldn’t be discussing this lurid matter-but alas, we must. It all began at the 1900 Paris World’s Fair, when his clattering junkyard dog of an engine was demonstrated, running on peanut oil. Yes, peanut oil. The inventor seemed to be saying: Feed my engine the ugliest muck you can find-with diesels, it’s garbage in, garbage out.

Fast-forward to today. Justin Carven, 26, of Florence, Massachusetts, wants to bolt his Greasecar Vegetable-Oil Conversion System onto your diesel-and it’s just as bizarre as it sounds. Read more at Car and Driver