In 1972 Dillingham began a series of ceramic gasoline can sculptures as a commentary on American car culture and gasoline-dependent modern lifestyles. These vessels harkened back to traditional Pueblo-style ceramic water jars, but with a socio-political message. The following year the
Middle East oil embargo began, and the ensuing American "oil crisis". He continued to produce this series for over a decade. Dillingham's experience studying and repairing Native American pots, as well as his interest in anthropology influenced his own art work. He is known for pioneering a process in which he hand-built a vessel, pit-fired it, deliberately broke it into shards, randomly painted both sides of each shard, Dillingham's vessels were produced by coil or slab work. He used traditional methods of using clay from local sources, and raku or dung firing his ceramics without a kiln. ==Awards and honors==