C. J. Evans, 90, retired president of the old Washington Petroleum Products Corporation, died of gastric bleeding Wednesday at his home in Washington.

Mr. Evans helped found Washington Petroleum Products in 1926. The company bought petroleum products wholesale for resale to small, independent gas stations in the Washington area. Mr. Evans became the company's president in 1932, a post he held until retiring in 1976. The company disbanded in the late 1970s.

A native of Washington and a 1908 graduate of Eastern High School, Mr. Evans was a 1912 graduate of Cornell University, where he earned a degree in mechanical engineering. He worked as a railroad employe in Oregon and as a trust officer in Utah.During World War I, he was a captain in the Army.

After the war, he worked in the oil business in Texas and in banking in Utah. He returned to Washington in 1920 and worked for six years in the bond and stock brokerage business. In 1926, he entered the petroleum business as secretary-treasurer of the Parkway Filling Station.

Survivors include his wife, LaVaun H., of Washington; a son, Richard J., of Bethesda; a sister, Betty E. Phipps of Annapolis, and three grandchildren.