A ford Trader diesel engine was operated on the dual fuel system, using diesel oil and methane. A considerable reduction in smoke generation and power loss could be obtained under operation at high altitude by replacing approximately 25% of the liquid fuel by methane.
Reference:
Heim, F. & Van Doornum, G. 1973. Dual fuel operation of a diesel engine on methane. http://hdl.handle.net/10204/12937 .
Heim, F., & Van Doornum, G. (1973). Dual fuel operation of a diesel engine on methane Retrieved from http://hdl.handle.net/10204/12937
Heim, FC, and GAW Van Doornum Dual fuel operation of a diesel engine on methane. 1973. http://hdl.handle.net/10204/12937
Heim F, Van Doornum G. Dual fuel operation of a diesel engine on methane. 1973 [cited yyyy month dd]. Available from: http://hdl.handle.net/10204/12937