I've always thought that if Al Gore and Obama ever showed up at a dirt track race, and seen a car blow a motor, dropping oil in the dirt, spewing smoke into the air, that they would have the EPA add regulations that all dirt tracks install million dollar Air Purifiers, and if there was motor oil that was in the soil, that the track be dug up and left exposed to open air for 5 years just like they do at an old service station underground tank.
Might be a moot point, cuz if Bernie or Hillary get there way, no one will have any money to go racing anyhow!!!