Contaminated Fuel

Do not use fuel that has been contaminated. Generally, fuel contamination occurs as the result of improper fuel handling. The most common types of contamination are water, dirt, and microbial growth (black slime). The formation of varnishes and gums resulting from poor stability or extended storage, or stale fuel, also affects fuel quality. The best treatment for contamination is prevention; maintain a clean storage system and choose a reputable fuel supplier.