the ammoniacal gas engines thus far constructed ... eonverted into an ammonia engine by replacing with iron or steel the parts eonstructed of brass, and by modifying to some extent the apparatus ...

Part of the automaker’s R engine lineup ... it’s easily one of the automaker’s most reliable engines. The gas-efficient, 2.2-liter inline-four 5S-FE engine existed in some form from 1990 ...

On October 9, California Gov. Gavin Newsom signed a law that will effectively ban the sale of gas-powered small off-road engines (SORE) — spark-ignited engines rated at or below 25 hp — many ...