After driving through Rocky Mountain National Park, it was hard to top. But the sheer cliffs and boulders of Teddy Roosevelt Forest lives up to the challenge. We had a hard time keeping the vegetable oil warm enough, because the cold in both national preserves and the downhill driving led to cold coolant temps, and thusly cold veg temps. We had to cycle the diesel and biofuel off and on to make sure our injector pump didn’t clog up.
