One report stated that it “was a mixture of used engine oil and highly corrosive brake fluid” but was not able to ascertain its origin.[4] The most accepted theory is that La Mancha Negra is the result of countless leaky, old cars spraying their fluids over the roadway.[2][5]
One report stated that it “was a mixture of used engine oil and highly corrosive brake fluid” but was not able to ascertain its origin.[4] The most accepted theory is that La Mancha Negra is the result of countless leaky, old cars spraying their fluids over the roadway.[2][5]