Originally Posted by joeblack5
Multifuel. Is that anything more then extra filters, may be with some heat added and indirect injection?
Always like that name. A lot better then flex fuel. Anyhow I figure my old mercedes and powerstroke could be called multifuel also?
The engine in Henry is called the LTD 465 Multifuel. With mechanical direct injection (Bosch design) and turbocharging, I believe it was designed by Continental in the late 1940's and was originally was used in an agricultural tractor. The US government wanted to replace all of its gasoline powered vehicles with diesels due to problems finding fuel during WWII.
Design features that make this a multi-fuel engine include the hypercycle combustion chamber that is cast into each piston and its 22-1 compression ratio. This engine can burn a wide variety of petroleum products including diesel, kerosene (which includes all the various grades of Jet fuel), various other lubricants ... and limited amounts of straight gasoline for VERY limited times. The low ignition temp of gasoline make it too volatile for long term use.
There are millions of stories of guys putting drinking alcohol in the tank and running on that ... I look at the ignition temp of alcohol and shake my head. Hey ... it's a good story.
Yes ... the OM617 engine in your 300 D can burn some amount of waste oil that has been filtered and thinned, almost ALL direct injected diesel engines can do this safely. One of the alternative projects was to purchase an old (50's) Jeep pickup and turn it into a woody wagon using the OM617 engine. It wouldn't be the fastest thing on 4 tires ... but it would be rugged and reliable and would burn just about any correctly de-watered, filtered and thinned petroleum product I could find. But I talked myself into this bus.
I have not done any testing on electronically injected diesels engines. My concerns regarding burning multiple types of fuels in newer, electronically injected engines have to do with spray patterns and possible harm to the close tolerance injectors.