Propaning Diesels :-)

Now that is a technology which is promising. Combining liquefied petroleum gas LPG (Autogas) and Diesel! No, that combination won't save the planet, but if prices come down, it may help to upgrade existing Diesel cars and trucks, making them more efficient, cleaner and more powerful :-).
I didn't know that this combination was possible until the recent article about a converted camper / motor home with more than 200bhp in German magazines and newspapers.  Here is a list of Diesel / Gas converters I found:

A few German forum discussions I found motor-talk.de/forum/diesel-mit-lpg-t1 and motor-talk.de/forum/diesel-auf-autogas-umruesten-t1.
When writing this post i was reminded of a cover story of the magazine by FastCompany couple of years ago. FC praised Jonathan Goodwin and his Diesel conversions as the next big thing: bio Diesel from used oil, turbines, hybrids, hydrogen - Diesel injection, 80 to 100 miles per gallon and all that by converting the beast of all vehicles, the Hummer H1. In short we were promised the revolution, that didn't happen of course.
When inspecting the technology closely, the Hlineconversion Diesels are Biodiesels combined with CNG (Compressed natural Gas) or Ethanol. Both Biodiesel and Ethanol have one common limitation, we need to grow that stuff and that is hardly effcient and only helps regions which have those crops or the waste in abundance.
CNG needs big solid tanks and therefore small cars are unlikely to ever run CNG in great numbers.
But LPG is much more practical, less pressure, smaller tanks and in many countries the LPG station infrastructure is quite good. Normal petrol stations increasingly add Autogas / LPG pumps. The great thing about Autogas / LPG is the possibility to convert the huge numbers of existing cars and trucks which are unlikely to disappear within the next 20 years.

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